diff --git a/app/Controllers/ApiIntegration.php b/app/Controllers/ApiIntegration.php
index 15e9fd8e..36d6e33a 100644
--- a/app/Controllers/ApiIntegration.php
+++ b/app/Controllers/ApiIntegration.php
@@ -20,12 +20,13 @@ class ApiIntegration extends ResourceController
         
             if(count($request_data)>0){
                 $this->logger->info("Api Integration : Request data count = ".count($request_data));
+                $this->logger->info("Api Integration : Request data = ".json_encode($request_data));
                 $i = 0;
                 $final_response = [];
                 foreach($request_data as $row_data)
                 { 
                     $get_response[$i] = $this->call_methods((array)$row_data, $api_request_text);
-                    $final_response[$i] = $get_response[$i]['message'];
+                    $final_response[$i] = isset($get_response[$i]['message'])?$get_response[$i]['message']:$get_response[$i];
                     $i++;
                 }
                 // return $this->respond(['status' => 200, 'message' => $final_response,'references'=>$get_response]);
@@ -36,7 +37,8 @@ class ApiIntegration extends ResourceController
             }
 
         } catch (\Exception $e) {
-                $this->logger->error("Api Integration : ".str_replace("_", " ",ucwords($api_request_text))." {exception}", ['exception' => $e]);
+                // $this->logger->error("Api Integration : ".str_replace("_", " ",ucwords($api_request_text))." {exception}", ['exception' => $e]);
+                $this->logger->error("Api Integration : ".str_replace("_", " ",ucwords($api_request_text))." Exception Message: " . $e->getMessage() . "<br> File: " . $e->getFile() . "<br> Line: " . $e->getLine() . "<br>");
                 return $this->fail('request failed, An error occurred on line ' . $e->getline() . ' : ' . $e->getMessage());
         }
     
@@ -63,36 +65,55 @@ class ApiIntegration extends ResourceController
                             case "books":
                                 try {
                                     $records = (array)$row_data;
-                                    $wordpress_book_id = $records['id'];
-                                    $this->logger->info("Api CallMethods : method name = ".$method.", row data count = ".count($records).", wordpress Product Ref ID = ".$wordpress_book_id);
-                                    $response = $this->save_book_details($records, $wordpress_book_id);
-                                    $this->logger->info("Api CallMethods : ".str_replace("_", " ",ucwords($api_request_text))." response = ".$response['status']);
+                                    $this->logger->info("Api CallMethods : method name = ".$method.", data type =".gettype($records));
+                                    if (isset($records['id']) && !empty($records['id'])) {
+                                        $wordpress_book_id = $records['id'];
+                                        $this->logger->info("Api CallMethods : method name = ".$method.", row data count = ".count($records).", wordpress Product Ref ID = ".$wordpress_book_id);
+                                        $response = $this->save_book_details($records, $wordpress_book_id);
+                                        $this->logger->info("Api CallMethods : ".str_replace("_", " ",ucwords($api_request_text))." response = ".$response['status']);
+                                    } else {    
+                                        throw new \Exception('The "id" field is not set or empty.');
+                                    }
                                 } catch (\Exception $e) {
-                                    $this->logger->error("Api CallMethods : ".str_replace("_", " ",ucwords($api_request_text))." {exception}", ['exception' => $e]);
+                                    // $this->logger->error("Api CallMethods : ".str_replace("_", " ",ucwords($api_request_text))." {exception} ", ['exception' => $e]);
+                                    $this->logger->error("Api CallMethods : ".str_replace("_", " ",ucwords($api_request_text))." Exception Message: " . $e->getMessage() . "<br> File: " . $e->getFile() . "<br> Line: " . $e->getLine() . "<br>");
                                     return $this->fail('request failed, An error occurred on line ' . $e->getline() . ': ' . $e->getMessage());
                                 }
                                 break;
                             case "customers":
                                 try {
                                     $records = (array)$row_data;
-                                    $wordpress_customer_id = $records['id'];
-                                    $this->logger->info("Api CallMethods : method name = ".$method.", row data count = ".count($records).", wordpress Customer Ref ID = ".$wordpress_customer_id);
-                                    $response = $this->save_customer_details($records, $wordpress_customer_id);
-                                    $this->logger->info("Api CallMethods : response = ".$response['status']);
+                                    $this->logger->info("Api CallMethods : method name = ".$method.", data type =".gettype($records));
+                                    if (isset($records['id']) && !empty($records['id'])) {
+                                        $wordpress_customer_id = $records['id'];
+                                        $this->logger->info("Api CallMethods : method name = ".$method.", row data count = ".count($records).", wordpress Customer Ref ID = ".$wordpress_customer_id);
+                                        $response = $this->save_customer_details($records, $wordpress_customer_id);
+                                        $this->logger->info("Api CallMethods : response = ".$response['status']);
+                                    } else {    
+                                        throw new \Exception('The "id" field is not set or empty.');
+                                    }
+                                    
                                 } catch (\Exception $e) {
-                                    $this->logger->error("Api CallMethods : ".str_replace("_", " ",ucwords($api_request_text))." {exception}", ['exception' => $e]);
+                                    // $this->logger->error("Api CallMethods : ".str_replace("_", " ",ucwords($api_request_text))." {exception}", ['exception' => $e]);
+                                    $this->logger->error("Api CallMethods : ".str_replace("_", " ",ucwords($api_request_text))." Exception Message: " . $e->getMessage() . "<br> File: " . $e->getFile() . "<br> Line: " . $e->getLine() . "<br>");
                                     return $this->fail('request failed, An error occurred on line ' . $e->getline() . ': ' . $e->getMessage());
                                 }
                                 break;
                             case "invoice":
                                 try {
                                     $records = (array)$row_data;
+                                    $this->logger->info("Api CallMethods : method name = ".$method.", data type =".gettype($records));
+                                  if (isset($records['id']) && !empty($records['id'])) {
                                     $wordpress_order_id = $records['id'];
                                     $this->logger->info("Api CallMethods : method name = ".$method.", row data count = ".count($records).", wordpress Order Ref ID = ".$wordpress_order_id);
                                     $response = $this->save_sales_details($records, $wordpress_order_id);        
                                     $this->logger->info("Api CallMethods : response = ".$response['status']);
+                                  } else {    
+                                    throw new \Exception('The "id" field is not set or empty.');
+                                  }
                                 } catch (\Exception $e) {
-                                    $this->logger->error("Api CallMethods : ".str_replace("_", " ",ucwords($api_request_text))." {exception}", ['exception' => $e]);
+                                    // $this->logger->error("Api CallMethods : ".str_replace("_", " ",ucwords($api_request_text))." {exception}", ['exception' => $e]);
+                                    $this->logger->error("Api CallMethods : ".str_replace("_", " ",ucwords($api_request_text))." Exception Message: " . $e->getMessage() . "<br> File: " . $e->getFile() . "<br> Line: " . $e->getLine() . "<br>");
                                     return $this->fail('request failed, An error occurred on line ' . $e->getline() . ': ' . $e->getMessage());
                                 }
                                 break;
@@ -103,7 +124,8 @@ class ApiIntegration extends ResourceController
                     } catch (\Exception $e) {
                         $exception_ends_with = $e->getline() ? 'on line ' . $e->getline() . ': ' . $e->getMessage() : $e->getMessage();
                         return $this->fail(ucwords($method).' request failed, An error occurred ' .$exception_ends_with);
-                        $this->logger->error("Api CallMethods : ".str_replace("_", " ",ucwords($api_request_text))." {exception}", ['exception' => $e]);
+                        // $this->logger->error("Api CallMethods : ".str_replace("_", " ",ucwords($api_request_text))." {exception}", ['exception' => $e]);
+                        $this->logger->error("Api CallMethods : ".str_replace("_", " ",ucwords($api_request_text))." Exception Message: " . $e->getMessage() . "<br> File: " . $e->getFile() . "<br> Line: " . $e->getLine() . "<br>");
                     }
                     break;
                 case 'delete':
@@ -135,7 +157,8 @@ class ApiIntegration extends ResourceController
                         $response = ['status' => 200, 'message' => $basic_message];
                     } catch (\Exception $e) {
                         $exception_ends_with = $e->getline() ? 'on line ' . $e->getline() . ': ' . $e->getMessage() : $e->getMessage();
-                        $this->logger->error("Api CallMethods : ".str_replace("_", " ",ucwords($api_request_text))." {exception}", ['exception' => $e]);
+                        // $this->logger->error("Api CallMethods : ".str_replace("_", " ",ucwords($api_request_text))." {exception}", ['exception' => $e]);
+                        $this->logger->error("Api CallMethods : ".str_replace("_", " ",ucwords($api_request_text))." Exception Message: " . $e->getMessage() . "<br> File: " . $e->getFile() . "<br> Line: " . $e->getLine() . "<br>");
                         return $this->fail('DELETE request failed, An error occurred' . $exception_ends_with);
                     }
                     break;
@@ -149,7 +172,8 @@ class ApiIntegration extends ResourceController
         } catch (\Exception $e) {
             // Handle the exception, you can log it or return an error response
             $exception_ends_with = $e->getline() ? 'on line ' . $e->getline() . ': ' . $e->getMessage() : $e->getMessage();
-            $this->logger->error("Api CallMethods : ".str_replace("_", " ",ucwords($api_request_text))." {exception}", ['exception' => $e]);
+            // $this->logger->error("Api CallMethods : ".str_replace("_", " ",ucwords($api_request_text))." {exception}", ['exception' => $e]);
+            $this->logger->error("Api CallMethods : ".str_replace("_", " ",ucwords($api_request_text)).$exception_ends_with);
             return $this->fail('An error occurred ' . $exception_ends_with);
         }
     }
@@ -291,7 +315,7 @@ class ApiIntegration extends ResourceController
                     $this->logger->info("Api SaveBookDetails : Image Data = $i ");
                     $i++;
                 } // image loop closed
-                $extensive_correspondence .= (!empty($book_image_data) ? $api_model->insertAndUpdateChildDetails($book_image_data, 'book_images', 'book_img_id') : []);
+                $extensive_correspondence .= (!empty($book_image_data) ? $api_model->insertAndUpdateChildDetails($book_image_data, 'book_images', 'book_img_id') : "");
                 $this->logger->info("Api SaveBookDetails : ".$extensive_correspondence);
             } //image count closed
             else{
@@ -444,7 +468,7 @@ class ApiIntegration extends ResourceController
                         // echo "&emsp;&emsp;&emsp;&emsp;&emsp;&emsp; Keys are available but Billing address has no value; <br/>";
                     }
                 }
-                $extensive_correspondence .= (!empty($customer_billing_address_data) ? $api_model->insertAndUpdateChildDetails($customer_billing_address_data, 'customer_addresses', 'customer_address_id') : []);
+                $extensive_correspondence .= (!empty($customer_billing_address_data) ? $api_model->insertAndUpdateChildDetails($customer_billing_address_data, 'customer_addresses', 'customer_address_id') : "");
                 $this->logger->info("Api SaveCustomerDetails : ".$extensive_correspondence);
                 
             }
@@ -528,7 +552,7 @@ class ApiIntegration extends ResourceController
                         // echo "&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp; Keys are available but Shipping address has no value <br/>";
                     }
                 }
-                $extensive_correspondence .= (!empty($customer_shipping_address_data) ? $api_model->insertAndUpdateChildDetails($customer_shipping_address_data, 'customer_addresses', 'customer_address_id') : []);
+                $extensive_correspondence .= (!empty($customer_shipping_address_data) ? $api_model->insertAndUpdateChildDetails($customer_shipping_address_data, 'customer_addresses', 'customer_address_id') : "");
                 $this->logger->info("Api SaveCustomerDetails : ".$extensive_correspondence);
             }else{
                 $this->logger->error("Api SaveCustomerDetails : Err = Address Data Not Found");    
@@ -710,7 +734,7 @@ class ApiIntegration extends ResourceController
                     $this->logger->info("Api SaveSalesDetails : Invoiceitem Data inx = $i ");
                     $i++;
                 } // line item loop closed
-                $extensive_correspondence .= (!empty($line_item_data) ? $api_model->insertAndUpdateChildDetails($line_item_data, 'invoiceitems', 'invoice_child_id') : []);
+                $extensive_correspondence .= (!empty($line_item_data) ? $api_model->insertAndUpdateChildDetails($line_item_data, 'invoiceitems', 'invoice_child_id') : "");
                 $this->logger->info("Api SaveSalesDetails : ".$extensive_correspondence);
 
             } 
@@ -794,7 +818,7 @@ class ApiIntegration extends ResourceController
                     $this->logger->info("Api SaveSalesDetails : Invoiceitem Data For Shipping inx = $j ");
                     $j++;
                 } // line item loop closed
-                $extensive_correspondence .= (!empty($shipping_line_item_data) ? $api_model->insertAndUpdateChildDetails($shipping_line_item_data, 'invoiceitems', 'invoice_child_id') : []);
+                $extensive_correspondence .= (!empty($shipping_line_item_data) ? $api_model->insertAndUpdateChildDetails($shipping_line_item_data, 'invoiceitems', 'invoice_child_id') : "");
                 $this->logger->info("Api SaveSalesDetails : ".$extensive_correspondence);
             } 
             else{
diff --git a/app/Controllers/Authentication.php b/app/Controllers/Authentication.php
index 874c3ee8..d67b1165 100755
--- a/app/Controllers/Authentication.php
+++ b/app/Controllers/Authentication.php
@@ -265,10 +265,10 @@ class Authentication extends BaseController
         $details = $auth_model->getheringDetailsForHeader($session_uid);
         $data['loggedin_person']    = $session_uname;
         $data['loggedin_person_role']    = $details[0]['role'];
-        $data['favicon']    = file_exists(FCPATH."public/uploads/".$details[0]['favicon']) ? base_url("public/uploads/".$details[0]['favicon']) : base_url("public/uploads/default.ico");
-        $data['profile_picture']  = file_exists(FCPATH."public/uploads/".$details[0]['profile_picture']) ? base_url("public/uploads/" . $details[0]['profile_picture']) : base_url("public/assets/images/users/avatar-9.jpg");        
-        $data['company_logo_small'] = file_exists(FCPATH."public/uploads/".$details[0]['company_logo_small']) ? base_url("public/uploads/" . $details[0]['company_logo_small']) : base_url("public/uploads/default_logo.png");        
-        $data['company_logo_large'] = file_exists(FCPATH."public/uploads/".$details[0]['company_logo_large']) ? base_url("public/uploads/" . $details[0]['company_logo_large']) : base_url("public/uploads/default.png");        
+        $data['favicon']    = !empty($details[0]['favicon']) && file_exists(FCPATH."public/uploads/".$details[0]['favicon']) ? base_url("public/uploads/".$details[0]['favicon']) : base_url("public/uploads/default.ico");
+        $data['profile_picture']  = !empty($details[0]['profile_picture']) && file_exists(FCPATH."public/uploads/".$details[0]['profile_picture']) ? base_url("public/uploads/" . $details[0]['profile_picture']) : base_url("public/assets/images/users/avatar-9.jpg");        
+        $data['company_logo_small'] = !empty($details[0]['company_logo_small']) &&  file_exists(FCPATH."public/uploads/".$details[0]['company_logo_small']) ? base_url("public/uploads/" . $details[0]['company_logo_small']) : base_url("public/uploads/default_logo.png");        
+        $data['company_logo_large'] = !empty($details[0]['company_logo_large']) &&  file_exists(FCPATH."public/uploads/".$details[0]['company_logo_large']) ? base_url("public/uploads/" . $details[0]['company_logo_large']) : base_url("public/uploads/default.png");        
         $successMessage = session()->getFlashdata('success');
         $validationErrors = session()->getFlashdata('error');
         // Load and display the form view with the above data
diff --git a/app/Controllers/BaseController.php b/app/Controllers/BaseController.php
index 9217c5af..b3960e33 100644
--- a/app/Controllers/BaseController.php
+++ b/app/Controllers/BaseController.php
@@ -74,10 +74,10 @@ abstract class BaseController extends Controller
             $data['loggedin_person']    = $session_uname;
             $data['loggedin_person_id'] = $session_uid;
             $data['loggedin_person_role']    = $details[0]['role'];
-            $data['favicon']    = file_exists(FCPATH."public/uploads/".$details[0]['favicon']) ? base_url("public/uploads/".$details[0]['favicon']) : base_url("public/uploads/default.ico");
-            $data['profile_picture']  = file_exists(FCPATH."public/uploads/".$details[0]['profile_picture']) ? base_url("public/uploads/" . $details[0]['profile_picture']) : base_url("public/assets/images/users/avatar-9.jpg");        
-            $data['company_logo_small'] = file_exists(FCPATH."public/uploads/".$details[0]['company_logo_small']) ? base_url("public/uploads/" . $details[0]['company_logo_small']) : base_url("public/uploads/default_logo.png");        
-            $data['company_logo_large'] = file_exists(FCPATH."public/uploads/".$details[0]['company_logo_large']) ? base_url("public/uploads/" . $details[0]['company_logo_large']) : base_url("public/uploads/default.png");        
+            $data['favicon']    = !empty($details[0]['favicon']) &&  file_exists(FCPATH."public/uploads/".$details[0]['favicon']) ? base_url("public/uploads/".$details[0]['favicon']) : base_url("public/uploads/default.ico");
+            $data['profile_picture']  = !empty($details[0]['profile_picture']) && file_exists(FCPATH."public/uploads/".$details[0]['profile_picture']) ? base_url("public/uploads/" . $details[0]['profile_picture']) : base_url("public/assets/images/users/avatar-9.jpg");        
+            $data['company_logo_small'] = !empty($details[0]['company_logo_small']) &&  file_exists(FCPATH."public/uploads/".$details[0]['company_logo_small']) ? base_url("public/uploads/" . $details[0]['company_logo_small']) : base_url("public/uploads/default_logo.png");        
+            $data['company_logo_large'] = !empty($details[0]['company_logo_large']) && file_exists(FCPATH."public/uploads/".$details[0]['company_logo_large']) ? base_url("public/uploads/" . $details[0]['company_logo_large']) : base_url("public/uploads/default.png");        
             $data['browser_title']         = $data['company_name'] . ' | ' . $data['company_short_name'] . ' ' . $data['page_name'];
             $data['heading']    = $data['page_name'] == "Dashboard" ? 'Welcome to ' . $data['company_name'] : "";
             echo view('template/header.php', $data);