Strange error #32 on website's bottom using yii2

I am using yii2 , and I have recently uploaded my whole website on the godaddy shared server. I have uploaded on the root folder my all other folders like controller , vendors , config etc

Then I have uploaded my "web" folder files like index.php and themes etc to public_html folder.

Everything works fine on the server but suddenly sometime it shows at the end of my page. This randomly appear when i refresh my server I am not sure.

Error (#32)

An internal server error occurred.

The above error occurred while the Web server was processing your request.

Please contact us if you think this is a server error. Thank you.

This is only happens with yii2 based framework

Check the snapshot