99.9% of the time, this error is caused by either uploading in binary instead of ASCII or by incorrect file permissions (not chmod 755).
Often you can gather more information by looking at your raw error log in Cpanel. (under the 'stats' header in Cpanel, look for the link that says 'error log' to get to those)
ALL cgi scripts MUST be chmod 755. This does not apply to PHP scripts. Just the scripts you place...
Make sure that you have uploaded to the cgi-bin. Make sure that you are trying to access the...
All CGI scripts should be placed in the CGI-BIN and set to chmod 755.
This being a generic error, it could be caused by many things. Here are some of the most common:...
Place your CGI programs in the cgi-bin directory. Be sure to upload them in ASCII mode. Make...