ERROR : Fantastico is not installed at the default location /usr/local/cpanel/3rdparty/fantastico. Either move the Fantastico directory from it’s current location to /usr/local/cpanel/3rdparty/fantastico OR enable ioncube loaders in WHM -> Tweak settings.
Whenever we get the above mentioned error we need to try out the following steps to fix the problem
First of all, try restarting cpanel.
service cpanel restart
Then we can also rebuild cpanel’s internal php just by running following command.
Finally restart cPanel once again
This should resolve the error...