Geeklog Forums

Hello. I had my site moved from one server to another. When I go to forum and click on "board admin" , this error is viewed on the page...

Warning: main(forum/include/gf_format.php) [function.main]: failed to create stream: No such file or directory in /home/nannette/public_html/admin/plugins/forum/boards.php on line 38

Fatal error: main() [function.main]: Failed opening required 'forum/include/gf_format.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/nannette/public_html/admin/plugins/forum/boards.php

Please advise how to make corrections. thank you.