A website hosted in Plesk for Windows fails to load: The FastCGI process exceeded configured activity timeout.

If your website is hosted on the Plesk Panel, you may find the below error in the web-browser.

HTTP Error 500.0 - Internal Server Error

C:\Program Files (x86)\Plesk\Additional\PleskPHP56\php-cgi.exe - The FastCGI process exceeded configured request timeout

or

HTTP Error 500.0 - Internal Server Error

C:\Program Files (x86)\Parallels\Plesk\Additional\PleskPHP56\php-cgi.exe - The FastCGI process exceeded configured activity timeout

When you try to install a WordPress plugin via the WordPress Admin Dashboard, the operation may fail with the below error. 

Installation failed: 500 Internal Server Error. The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator to get the error.

The FastCGI process exceeded the configured activity timeout.

What is the cause of this issue?

Activity timeout or request timeout for FastCGI is insufficient.

Resolution of this error

1. Login to your Plesk Panel.
   
   
2. Go to your domain. Example.com >> PHP Settings
   
   
   
   
3. At the bottom find FastCGI settings and make sure it is enabled.
   
   
4. Changed the activity timeout to 200 and request timeout to 200
   
   
   
   
5. Click on the OK button. 

        Now, the error should be gone and you should able to upload the plugin without any issue.