po wgraniu bazy i wgraniu plików mam taki problem jak to ustawić

Warning: require_once(/srv/home/xxxxxx/public_html/forum/includes/class_core.php) [function.require-once]: failed to open stream: No such file or directory in /srv/home/xxxxxxx/public_html/forum/includes/init.php on line 45

Fatal error: require_once() [function.require]: Failed opening required '/srv/home/xxxxx/public_html/forum/includes/class_core.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /srv/homexxxxx/public_html/forum/includes/init.php on line 45

to jest jak www.moja stron,pl

http://www.moja stron.pl/forum/index.php

Invalid forum path specified! Please edit this file and be sure to include the correct path for your $forumpath variable.