Error including libraries: Can't locate /pub/home/ribca/humor/cgi-bin/admin/db_utils.pl in @INC (@INC contains: /home/www/vhosts/ribca.net/humor/cgi-bin /usr/local/lib/perl5/5.8.8/BSDPAN /usr/local/lib/perl5/site_perl/5.8.8/mach /usr/local/lib/perl5/site_perl/5.8.8 /usr/local/lib/perl5/site_perl /usr/local/lib/perl5/5.8.8/mach /usr/local/lib/perl5/5.8.8 .) at /home/www/vhosts/ribca.net/humor/cgi-bin/add.cgi line 10.

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