cPanel Fantastico not able to install any apps

Today I found out that the cPanel do not working well with the Fantastico DeLuxe and I have no idea what it is going on at first as there do not have any error from the server.

Symptoms:
1. Fantastico showing installation configuration file and database with ERROR.
2. No web file in the public_html folder.
3. Database is not configured properly(no table and data).

After long time tested and checked. Finally I am able to get some hint from the cPanel error_log.
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PHP Warning:  shell_exec() has been disabled for security reasons in /tmp/cpanel_phpengine.1289814352.9866F8Ane8kVMm on line 979
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I have immediate go to php.ini file and check for the disable_function and found out shell_exec and system is being listed.

To overcome it, I have putting a semi-colon “;” to the line of disable_function and restart the Apache HTTPD services and it is working fine.