Error :
If you are using wrong asp.net, php version then you will get an above error .
Solution :
Please follow the below procedure to change the ASP.NET version
[1] Login to your plesk control panel [ https://servername.com:8443/]
[2] Click on subscription.
[3] Click your subscription name
[4] Click website and Domains tab and Click Hosting settings
[5] Change the ASP.NET version
[6] Click on ok.