Added allowedFields to models

- Without this save(), insert() and update() fail

app/Models/Module.php

@@ -10,6 +10,12 @@ use CodeIgniter\Model;
  */
 class Module extends Model
 {
+	protected $allowedFields = [
+		'name_lang_key',
+		'desc_lang_key',
+		'sort'
+	];
+
 	public function get_module_name(string $module_id): string
 	{
 		$builder = $this->db->table('modules');
@@ -128,4 +134,4 @@ class Module extends Model
 
 		return $builder->get()->getRow()->sort;
 	}
-}
+}