Frequently Asked Question

There are a couple of main reasons this happen, firstly, CGI scripts must be run with certain permissions due to server security restrictions.

You must own the files - FTP should take care of that when you upload any content, and CGI scripts require permissions of 710 to run, else they will also error out.

710 reflects 

7      owner  +rwx 

1      group   +x-rw 

0      world   -rwx

Secondly, invalid or non-closed sub processes, in the code. This also includes trying to reference a system directory or file you will not have access to.

Check error logs if problems arise for narrowing down the actual reason.