Blank white pages loading after moving from Shared host to a VPS HELP

[Sharingan_Okami]

Hey guys, I'm having a serious 'permission' problem i think. Just after changing hosts from Shared host to a VPS Server. I have tried to change permissions and some Apache setting but with no luck whatsoever, i have been stuck like this for almost a week now and searched high and low for a solution.

I'm currently running Vbulletin 4.2.1

Here are my error logs:

[Tue May 19 19:18:44 2015] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP Warning:  require(): open_basedir restriction in effect. File(/home/forum/public_html/forum.php) is not within the allowed path(s): (1) in /home/forum/public_html/index.php on line 43
[Tue May 19 19:18:44 2015] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP Warning:  require(/home/forum/public_html/forum.php): failed to open stream: Operation not permitted in /home/forum/public_html/index.php on line 43
[Tue May 19 19:18:44 2015] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP Fatal error:  require(): Failed opening required 'forum.php' (include_path='.:/usr/share/pear:/usr/share/php') in /home/forum/public_html/index.php on line 43
[Tue May 19 19:18:54 2015] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP Warning:  require(): open_basedir restriction in effect. File(/home/forum/public_html/forum.php) is not within the allowed path(s): (1) in /home/forum/public_html/index.php on line 43
[Tue May 19 19:18:54 2015] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP Warning:  require(/home/forum/public_html/forum.php): failed to open stream: Operation not permitted in /home/forum/public_html/index.php on line 43
[Tue May 19 19:18:54 2015] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP Fatal error:  require(): Failed opening required 'forum.php' (include_path='.:/usr/share/pear:/usr/share/php') in /home/forum/public_html/index.php on line 43
[Tue May 19 19:19:02 2015] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP Warning:  require_once(): open_basedir restriction in effect. File(/home/forum/public_html/global.php) is not within the allowed path(s): (1) in /home/forum/public_html/forumdisplay.php on line 99
[Tue May 19 19:19:02 2015] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP Warning:  require_once(/home/forum/public_html/global.php): failed to open stream: Operation not permitted in /home/forum/public_html/forumdisplay.php on line 99
[Tue May 19 19:19:02 2015] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP Fatal error:  require_once(): Failed opening required './global.php' (include_path='.:/usr/share/pear:/usr/share/php') in /home/forum/public_html/forumdisplay.php on line 99
[Tue May 19 19:20:41 2015] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP Warning:  require(): open_basedir restriction in effect. File(/home/forum/public_html/forum.php) is not within the allowed path(s): (1) in /home/forum/public_html/index.php on line 43
[Tue May 19 19:20:41 2015] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP Warning:  require(/home/forum/public_html/forum.php): failed to open stream: Operation not permitted in /home/forum/public_html/index.php on line 43
[Tue May 19 19:20:41 2015] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP Fatal error:  require(): Failed opening required 'forum.php' (include_path='.:/usr/share/pear:/usr/share/php') in /home/forum/public_html/index.php on line 43
[Tue May 19 19:20:41 2015] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP Warning:  require(): open_basedir restriction in effect. File(/home/forum/public_html/forum.php) is not within the allowed path(s): (1) in /home/forum/public_html/index.php on line 43
[Tue May 19 19:20:41 2015] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP Warning:  require(/home/forum/public_html/forum.php): failed to open stream: Operation not permitted in /home/forum/public_html/index.php on line 43
[Tue May 19 19:20:41 2015] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP Fatal error:  require(): Failed opening required 'forum.php' (include_path='.:/usr/share/pear:/usr/share/php') in /home/forum/public_html/index.php on line 43
[Tue May 19 19:20:42 2015] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP Warning:  require(): open_basedir restriction in effect. File(/home/forum/public_html/forum.php) is not within the allowed path(s): (1) in /home/forum/public_html/index.php on line 43
[Tue May 19 19:20:42 2015] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP Warning:  require(/home/forum/public_html/forum.php): failed to open stream: Operation not permitted in /home/forum/public_html/index.php on line 43
[Tue May 19 19:20:42 2015] [warn] [client xx.xx.xx.xx] mod_fcgid: stderr: PHP Fatal error:  require(): Failed opening required 'forum.php' (include_path='.:/usr/share/pear:/usr/share/php') in /home/forum/public_html/index.php on line 43

Any help on this problem is much appreciated.