Continuous error
 

We are receiving these errors continuously and I cannot fathom out why!! All from different users.

There have been no mods done or others changes made in months - and now suddenly this

If anyone can shed some light on the subject it would be appreciated


-----------------------

Database error in vBulletin 3.8.2:

Invalid SQL:

REPLACE INTO tbthreadread
(threadid, userid, readtime)
VALUES
(34227, 3783, 1251840988);

MySQL Error : Duplicate entry '1251840988' for key 2
Error Number : 1062
Request Date : Wednesday, September 2nd 2009 @ 08:57:25 AM
Error Date : Wednesday, September 2nd 2009 @ 08:57:25 AM
Script : http://forum.domain.com/showthread.php?t=34227
Referrer :
IP Address : ***.**.***.***
Username : h******
Classname : vB_Database
MySQL Version :