There are lot of reasons for cgi and perl scripts not working.

You can do a small test on your cgi-bin. Please see below steps. 

1) Create test.pl file in notepad or any text editor with the following code: 

#!/usr/bin/perl
print "Content-Type: text/html\n\n";
print "Cgi-bin and perl test ";

2) upload script to cgi-bin folder in the ASCII mode

3) Set test.pl permissions to 755

4) Type http://www.yourdomain.com/cgi-bin/test.pl  to test the script.

If you can see the message "Cgi-bin and perl test" then your cgi-bin and perl scripts are working fine on your domain.

You need to check your scripts, permissions and upload mode. All these are very important to run successful scripts.

If you are still getting errors open a helpdesk ticket specificifying the error, along with your logins, to troubleshoot.