infos prestataire form : add flash message no matter what is class of form error cause

src/Controller/UserPrestataireController.php

@@ -106,14 +106,13 @@ class UserPrestataireController extends FluxController
             }
         } else {
             foreach ($form->getErrors(true, true) as $error) {
-                // Add flash error message in case of error with the embedded form
-                if (str_contains($error->getCause()->getPropertyPath(), 'productFamily')) {
-                    $this->addFlash(
-                        'error',
-                        $error->getMessage()
-                    );
-                    break;
-                }
+                // Errors detected here can be productFamily errors or other errors like csrf token errors
+                // Add flash message showing the first error message
+                $this->addFlash(
+                    'error',
+                    $error->getMessage()
+                );
+                break;
             }
         }