An Error occurred while handling another error:
yii\base\InvalidArgumentException: Response content must be a string or an object implementing __toString(). in /data/nas/web/b2b-v6.0/vendor/yiisoft/yii2/web/Response.php:1113
Stack trace:
#0 /data/nas/web/b2b-v6.0/vendor/yiisoft/yii2/web/Response.php(339): yii\web\Response->prepare()
#1 /data/nas/web/b2b-v6.0/vendor/yiisoft/yii2/web/ErrorHandler.php(136): yii\web\Response->send()
#2 /data/nas/web/b2b-v6.0/vendor/yiisoft/yii2/base/ErrorHandler.php(134): yii\web\ErrorHandler->renderException()
#3 [internal function]: yii\base\ErrorHandler->handleException()
#4 {main}
Previous exception:
yii\base\InvalidRouteException: Unable to resolve the request "/aboutus". in /data/nas/web/b2b-v6.0/vendor/yiisoft/yii2/base/Module.php:561
Stack trace:
#0 /data/nas/web/b2b-v6.0/vendor/yiisoft/yii2/web/Application.php(103): yii\base\Module->runAction()
#1 /data/nas/web/b2b-v6.0/vendor/yiisoft/yii2/base/Application.php(384): yii\web\Application->handleRequest()
#2 /data/nas/web/myueeshop.com/upay/upay809/frontend/index.php(24): yii\base\Application->run()
#3 {main}

Next yii\web\NotFoundHttpException: Page not found. in /data/nas/web/b2b-v6.0/vendor/yiisoft/yii2/web/Application.php:115
Stack trace:
#0 /data/nas/web/b2b-v6.0/vendor/yiisoft/yii2/base/Application.php(384): yii\web\Application->handleRequest()
#1 /data/nas/web/myueeshop.com/upay/upay809/frontend/index.php(24): yii\base\Application->run()
#2 {main}