Database Help

[Dcoy]

I know that this is not the place for this. But i can't access vbulletin.com forgot my login details and the details that was saved on my notepad was not recognized. Also tried to use forgot password but nothing happened.

Anyway my problem is, I'm constantly getting lots of Database Error lately

Database error in vBulletin 3.8.4:

Invalid SQL:

        REPLACE INTO externalcache
            (cachehash, dateline, text, headers, forumid)
        VALUES

'a:5:{i:0;s:33:\"Cache-control: max-age=1380128315\";i:1;s:38:\"Expires: Wed, 25 Sep 2013 16:58:35 GMT\";i:2;s:44:\"Last-Modified: Wed, 25 Sep 2013 15:58:35 GMT\";i:3;s:40:\"ETag: \"fe57209d4d2fc9dd5dd48649a0947371\"\";i:4;s:42:\"Content-Type: text/xml; charset=ISO-8859-1\";}',
                0
            );

MySQL Error  : Got a packet bigger than 'max_allowed_packet' bytes
Error Number  : 1153
Request Date  : Wednesday, September 25th 2013 @ 11:58:35 AM
Error Date    : Wednesday, September 25th 2013 @ 11:58:36 AM
Script        : http://site.com/external.php?type=RSS2
Referrer      :
IP Address    : 50.22.114.35
Username      : Unregistered
Classname    : vB_Database
MySQL Version :

            (

It has a very long text containing what the user posted on a thread. Any idea how to fix this?

Thank you