MySQL Error

[jbizzle]

I am getting multiple SQL errors

MySQL Error   : MySQL server has gone away

Also, these errors.

Database error in vBulletin 3.8.4:

Invalid SQL:

            UPDATE datastore SET
                data = data - 1,
                data = IF(data < 0, 0, data)
            WHERE title = 'mailqueue';

Invalid SQL:

                    UPDATE session
                    SET lastactivity = 1268165777, location = 
'/forum/admincp/email.php?do=dosendmail&do=dosendmail', inforum = 0, inthread = 
0, incalendar = 0, badlocation = 0, useragent = 'Mozilla/5.0 (Windows; U; 
Windows NT 6.0; en-US; rv:1.9.0.18) Gecko/2010020220 Firefox/3.0.18 (.NET CLR 
3.5.30729)'
                    WHERE sessionhash = '56542e98237a161685411bbfa1c02463';

Invalid SQL:

            UPDATE datastore SET
                data = data - 1,
                data = IF(data < 0, 0, data)
            WHERE title = 'mailqueue';

I never use to get vBulletin errors...