Internal Server Error 500 No Response From Subprocess (/Usr/Local/Cpanel/Whostmgr/Docroot/Cgi/Addon_nginx.Cgi

 When using WHM -> Plugins -> Nginx Admin:

Internal Server Error

500

No response from subprocess (/usr/local/cpanel/whostmgr/docroot/cgi/addon_nginx.cgi): The subprocess reported error number 2 when it ended.

cpsrvd/11.62.0.7

 

Solution :

Go to /usr/local/cpanel/whostmgr/docroot/cgi/addon_nginx.cgi  and Comment the line whmlib.pm

and commenting the line:
use whmlib;

to

#use whmlib;

and Save it