Example of these problems:

Code:
Database error in vBulletin 3.8.1:

Invalid SQL:

SELECT user.username, usergroupid, membergroupids, infractiongroupids, administrator.*
FROM administrator AS administrator
INNER JOIN user AS user USING(userid)
ORDER BY user.username;

MySQL Error : Got error 28 from storage engine
Error Number : 1030
Request Date : Monday, April 13th 2009 @ 03:08:52 AM
Error Date : Monday, April 13th 2009 @ 03:08:53 AM
Script : http://www.cancersociety.org.sa/mon/...ermissions.php?
Referrer : http://www.cancersociety.org.sa/mon/admincp/index.php
IP Address :
Username :
Classname : vB_Database
MySQL Version : 5.0.67-community




Code:
Database error in vBulletin 3.8.1:

Invalid SQL:

SELECT pm.*, pmtext.*, userlist_ignore.userid AS ignored
,icon.iconpath, icon.title AS icontitle
FROM pm AS pm
INNER JOIN pmtext AS pmtext ON(pmtext.pmtextid = pm.pmtextid)
LEFT JOIN userlist AS userlist_ignore ON
(userlist_ignore.userid = 1 AND userlist_ignore.relationid = pmtext.fromuserid AND userlist_ignore.type = 'ignore')
LEFT JOIN icon AS icon ON(icon.iconid = pmtext.iconid)
WHERE pm.userid = 1
AND pm.messageread = 0
ORDER BY pmtext.dateline DESC
LIMIT 5;

MySQL Error : Got error 28 from storage engine
Error Number : 1030
Request Date : Monday, April 13th 2009 @ 03:41:08 AM
Error Date : Monday, April 13th 2009 @ 03:41:08 AM
Script : http://www.cancersociety.org.sa/mon/usercp.php
Referrer : http://www.cancersociety.org.sa/mon/index.php
IP Address :
Username :
Classname : vB_Database
MySQL Version : 5.0.67-community