Invalid Argument – yii＼base＼Invali

　　yiibaseInvalidArgumentException: Response content must not be an array. in /data/wwwroot/singsun.net/vendor/yiisoft/yii2/web/Response.php:1082

　　Stack trace:

　　#0 /data/wwwroot/singsun.net/vendor/yiisoft/yii2/web/Response.php(337): yiiwebResponse->prepare()

　　#1 /data/wwwroot/singsun.net/vendor/yiisoft/yii2/base/Application.php(392): yiiwebResponse->send()

　　#2 /data/wwwroot/singsun.net/web/index.php(17): yiibaseApplication->run()

　　#3 {main}

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