errors running 3.5.4

[محروم.كوم]

I am running 3.5.4 with cmps 2.1.0.
Recently my server folks did some upgrading and i assume to php5 and mysql5.anyway my site was unreachable until they did something on their end to make it work.

Now i am getting all sorts of errors regarding the word "phrase".

I decided to finally do my upgrade in hopes that maybe it would fix my problems however i am running into problems even there.the main problem right now is that when i go to admincp to turn off my forum as per intruction i get the following error and can't get to the page to turn it off:
Database error in vBulletin 3.5.4:

Invalid SQL:

SELECT varname, text
FROM phrase
WHERE phrasetypeid = 5000 AND
languageid IN(-1, 0, 1)

ORDER BY languageid ASC;

MySQL Error : Table './xxxxxxxxx_forum/phrase' is marked as crashed and should be repaired
Error Number : 145
Date : Thursday, February 18th 2010 @ 09:19:46 PM
Script : http://www.xxxxxxxxxx.net/forums/adm...ons.php?null=0
Referrer : http://www.cxxxxxxxxxx.net/forums/ad...dex.php?do=nav
IP Address : xx.xx.xx.xx
Username : Niteflyer
Classname : vB_Database

it seems there is a problem with mysql but have no idea how to fix it so i can proceed with upgrade and/or stop the zillion errors of the same type every time someone posts.

Does the forum HAVE to be turned off to upgrade or is there a way to this ignorant sole to temp fix it so i can proceed?

thanks in advance for any help as i am at wits end

niteflyer __DEFINE_LIKE_SHARE__