Database error on last posts

[kryssluck]

When i click the last message on the category, I am receiving this error.

This will occur only when login is made. I tried to turn off all extensions. I tried to repair the post table.

What should I do ?

https://vborg.vbsupport.ru/external/2015/09/17.jpg


Database error in vBulletin 3.8.9:

Invalid SQL:

SELECT MIN(postid) AS postid
FROM post
WHERE threadid = 20
AND visible = 1
AND dateline > 1441226037
AND userid NOT IN (//)
LIMIT 1;

MySQL Error : You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '//)
LIMIT 1' at line 6
Error Number : 1064
Request Date : Wednesday, September 2nd 2015 @ 09:58:36 PM
Error Date : Wednesday, September 2nd 2015 @ 09:58:36 PM
Script : http://******.com/showthread.php?t=20&goto=newpost
Referrer : http://*****.com/
IP Address : 78.177.*****
Username : K******
Classname : vB_Database
MySQL Version : 5.5.45

PHP Version 5.4.44

Edit: This error message came up again message editing

Database error in vBulletin 3.8.9:

Invalid SQL:

SELECT thread.postuserid, COUNT(*) AS threadcount
FROM thread AS thread
WHERE thread.postuserid IN (//)
AND thread.visible = 1
AND thread.open <> 10
AND thread.forumid = 52
GROUP BY thread.postuserid;

MySQL Error : You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '//)
AND thread.visible = 1
AND thread.open <> 10
AND thread.forumid ' at line 3
Error Number : 1064
Request Date : Wednesday, September 2nd 2015 @ 10:14:41 PM
Error Date : Wednesday, September 2nd 2015 @ 10:14:41 PM
Script : http://********.com/editpost.php?do=updatepost&postid=28
Referrer : http://*******.com/guncel-yarismalar/22-asdfasdf.html
IP Address : 78.177.*****
Username : K******
Classname : vB_Database
MySQL Version : 5.5.45

[Lynne]

Please look in AdminCP > Settings > Options > User Banning Options > Coventy (or Global Ignore, whatever they call it in that version) and make sure you enter the *userid* not the username.

[kryssluck]

Please look in AdminCP > Settings > Options > User Banning Options > Coventy (or Global Ignore, whatever they call it in that version) and make sure you enter the *userid* not the username.

What should i write in that field? "Tachy Goes to Coventry = [// ]"

It is not about my membership, this error occurs comes in all membership, except guests...


Edit: Solved. I deleted "//" in the field. Its empty now. I say many thanks to my problem is resolved :)