Error including libraries: Can't use 'defined(@array)' (Maybe you should just omit the defined()?) at /homepages/41/d71833572/htdocs/mitsegeln/cgi-bin/1/admin/db_utils.pl line 341.
Compilation failed in require at /kunden/homepages/41/d71833572/htdocs/mitsegeln/cgi-bin/1/modify.cgi line 31.

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