I am getting the following error, can anyone tell me what i might be doing wrong

Error including libraries: Illegal division by zero at /u/web/mdnetc/cgi-local/links/admin/links.cfg line 69.

Make sure they exist, permissions are set properly, and paths are set correctly.

Thanks in advance

OK, I managed to get rid of that problem but i am now getting an Internal Server Error page come up. Can anyone help please