[Lazorbeam]

Originally Posted by Iain M

Do you have Mod Security installed on your server? That could be blocking it... check your apache error_log.

Originally Posted by Disasterpiece

normally under /var/log/apache2/error_log

or if you have vhosts configured then in their special directories, should be sufficient to search for "error_log" tho

I actually found the file after a lot of messing around in SSH, there are no reports containing editpost or newreply, however many vbseo errors. The two relevant ones:

18-Mar-2012 02:30:57] PHP Fatal error: Call to undefined function error_reporting() in /home/site/public_html/vbseo.php on line 15

[19-Mar-2012 03:36:20] PHP Fatal error: Allowed memory size of 167772160 bytes exhausted (tried to allocate 27516809 bytes) in /home/site/public_html/vbseo/includes/functions_vbseo_seo.php on line 120

Which corresponds to

error_reporting(0);

and

$text = preg_replace(array_keys($seo_preg_replace), $seo_preg_replace, $text);

--------------- Added [DATE]1332458235[/DATE] at [TIME]1332458235[/TIME] ---------------

Originally Posted by Lynne

Did you recently update PHP to 5.3? And PCRE to 8.21? There is a bug in PCRE 8.21 that causes issues like you are mentioning. You would need to go back to PCRE 8.20.

I'm not even sure what PCRE is, and PHP wouldn't automatically update itself, would it?

According to phpinfo, PCRE is 8.21 and PH is 5.3.8.

--------------- Added [DATE]1332470812[/DATE] at [TIME]1332470812[/TIME] ---------------

Please close this thread, I have narrowed down the problem and my previous posts here are a little misleading. Starting a new thread.