Error including libraries: Can't locate /usr/home/casian/public_html/jansweb.com/cgi-bin/links/admin/links.cfg in @INC (@INC contains: /home/hosts/longbui/jansweb.com/cgi-bin/links /usr/local/lib/perl5/site_perl/5.8.6/mach /usr/local/lib/perl5/site_perl/5.8.6 /usr/local/lib/perl5/site_perl /usr/local/lib/perl5/5.8.6/BSDPAN /usr/local/lib/perl5/5.8.6/mach /usr/local/lib/perl5/5.8.6 .) at /home/hosts/longbui/jansweb.com/cgi-bin/links/modify.cgi line 30.

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