MyBB Community Forums

hi!
i set one of my forum section's thread under moderator queue. now when some of moderator click on thread which is under queue will always produce error, "service not available".
and i got this mail after this error

Your copy of MyBB running on c# - vb.net - asp.net discussion forum (http://www.dotnetobject.com) has experienced an error. Details of the error include:
---
Type: 20
File: (Line no. 0)
Message
SQL Error: 1064 - 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 ')
ORDER BY p.dateline' at line 3
Query:
SELECT subject, message
FROM mybb_posts p
WHERE pid IN()
ORDER BY p.dateline

i am dotnet programmer so have less knowledge about php. please let me know if someone can solve my problem?

What plugins do you have??

Awaiting Activation Message (1.6)
Activated

Akismet (1.2.1)
Not activated

Create New Threads from the Index (1.0)
activated

Google Analytics (1.5)
activated

Google SEO (1.1.13)
not activated

Hello World! (1.0)
not activated

HTTP Status (1.0.1)
not activated

iShare (1.1.0)
activated

Index Top Posters (1.0.1)
activated

Last Visitors in Profile (1.1)
activated

Master Meta Tags (1.0)
activated

My Advertisements (1.6)
not active

NewPoints (1.6)
active

OpenInviter (1.0)
not active

PostAd(lite) (1.0.0)
not active

Recent Topics Index Page (1.0)
not active

SEO Links! (1.1 Beta 1)
not active

Social Sharing Button (1.0)
not active

SpiceFuse Shoutbox (1.1 Beta 1)
not active

Stops Self Rating (1.0)
active

Twitter New Thread (1.2)
active

View Unread Posts (1.3)
not active

The problem is Master Meta Tags Deactivate that.

solved........ thanks MattRogowski
i was worried but you resolve my issue in no time