fix

app/Services/Folder/FoldersService.php

@@ -26,7 +26,7 @@ class FoldersService
             File::query()
                 ->join('folders', 'files.folder_id', '=', 'folders.id')
                 ->where('folders.path', 'like', $folder->path . '%')
-                ->update(['files.naming_rule_id' => $namingRule->id, 'naming_rules' => []]);
+                ->update(['files.naming_rule_id' => $namingRule->id, 'naming_rules' => null]);
         });
     }