Bugfix: Non-static method common\models\Settings::getValue() should not be...

 Bugfix: Non-static method common\models\Settings::getValue() should not be called statically, assuming $this from incompatible context

common/models/Settings.php

@@ -64,7 +64,7 @@ class Settings extends \common\components\ActiveRecordModel
         ];
     }
 
-    public function getValue($code)
+    public static function getValue($code)
     {
         $model = Settings::find()->where(['code' => $code])->one();