[Forum] forum.php not loading fully...

[zadvantage]

I'm not sure where to start with this problem.
We just upgraded to 4.0.2 - we were quite a few updates behind, and had just been hacked. After the upgrades forum.php does not fully load, but does not give any errors that I can see. It only loads the first forum piece, and only the first child forum below the main heading. The bottom/footer of the page is not loading.
Clicking on the link that does come up loads the section just fine. Using forumdisplay.php to type in the "number" of a forum (like www.fitnessboard.net/forumdisplay.php?7) will display that full section - so I know the database is there.

This is what it looks like when I click the "forum" tab:


If I hit refresh it will display differently every few times I click refresh (I circled the areas that change):








and finally occasionally when it will load it comes up like this:



Going into an area via "forumdisplay.php" shows something more like it should:

http://www.ptaaron.com/forum6.jpg

I am not the main coder for the site - I am just trying to troubleshoot and figure out what I should be looking for. Any help or suggestions are appreciated.

[zadvantage]

Anyone have any thoughts? We really want to get the forums back online before we start losing members...

[Lynne]

Take a look at your error_logs. Also, try disabling all your plugins via the config.php file.
Note: To temporarily disable the plugin system, edit config.php and add this line right under <?php

define('DISABLE_HOOKS', true); 

[zadvantage]

Disabling plugins via config file did the trick. Just have to figure out what it is that was actually causing the problem - but this will allow us to get the forum open again. Thank you.

[zadvantage]

I removed all of the outdated plugins that we have, attempted to re-enable the plugins and the problem re-occurred. Only 2 plugins are CMS and the blogs... so clearly there is a problem with CMS.

[steven s]

I removed all of the outdated plugins that we have, attempted to re-enable the plugins and the problem re-occurred. Only 2 plugins are CMS and the blogs... so clearly there is a problem with CMS.

Maybe a bad CMS widget?