Forum [Support] Database Error, Invalid SQL?

[محروم.كوم]

Hello! When I went to sleep, my community was fine. When I woke up, I found this:

Code:
Database error in vBulletin 4.2.0:

Invalid SQL:

INSERT IGNORE INTO vbforumssession
(sessionhash, userid, host, idhash, lastactivity, location, styleid, languageid, loggedin, inforum, inthread, incalendar, badlocation, useragent, bypass, profileupdate, apiclientid, apiaccesstoken)

VALUES
('8fe46eea85ddd637a5f12648c830b184', 217, '63.239.65.11', '5741f09072acacb4b06287f9cdb23f7d', 1360326944, '/forum/', 0, 0, 1, 0, 0, 0, 0, 'Mozilla/5.0 (Windows NT 5.1; rv:18.0) Gecko/20100101 Firefox/18.0', 0, 0, 0, '');

MySQL Error : INSERT command denied to user 'dbo342796488'@'74.208.16.178' for table 'vbforumssession'
Error Number : 1142
Request Date : Friday, February 8th 2013 @ 07:35:44 AM
Error Date : Friday, February 8th 2013 @ 07:35:44 AM
Script : http://united-we-fight.com/forum/
Referrer :
IP Address : 63.239.65.11
Username : Fallon Valor
Classname : vB_Database
MySQL Version : 5.0.96-log
I'm not especially technical, but I can confirm that no plugins/upgrades were deployed recently. From the text, I'm assuming it may relate to database user permissions? We've also submitted a ticket to our host, but I'm hoping you vB gurus can provide some insight to a noob.

Thanks for your time! __DEFINE_LIKE_SHARE__