Oh suddendly database error tracked to a vault file, help please

I haven't been on the site for a while and mods don't like to bother me so this was just brought to my attention.

When they try to move a thread they get the following, I just tried and get it also, I also get this when I try to run maintainance and delete orphaned posts.

Database error in vBulletin 3.8.4:

Code:

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Invalid SQL:
DELETE FROM vault_link WHERE postid IN (65959);

MySQL Error  : Table './xxxxxxxxx_db/vault_link' is marked as crashed and should be repaired
Error Number  : 145
Request Date  : Sunday, April 10th 2011 @ 03:25:35 PM
Error Date    : Sunday, April 10th 2011 @ 03:25:37 PM
Script        : http://ft.net/admincp/misc.php?do=removeorphanposts
Referrer      : http://ft.net/admincp/misc.php?do=chooser
IP Address    : xxxxxxxxxxxxxx
Username      : xx
Classname    : vB_Database
MySQL Version : 5.0.92-community

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Ted I took out the private info, you know which site this is :)

What does this mean and what should I do?

ADDED - I can't delete a post or thread, same error.

Yes, you'll need to truncate or repair the vault_link table in the database. You may need to remove the table entirely and replace it with an empty version. If you've kept up to date with the VaultWiki releases, I'm surprised that this occurred at all. The load on that table was significantly reduced many versions ago.

Well since I have NO idea what you are talking about I need to upgrade the Wiki right? I have 3.00 installed so can I just upgrade using the latest version, I have it... I've kept all my licenses up to date, or do I have to go through some other process Ted?

1. Run the SQL query:

Code:

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TRUNCATE vault_link

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2. Upgrade to the new version.