this message come to me every time
how solve it
Database error in vBulletin 3.6.8:
Invalid SQL:
UPDATE session SET sessionhash ='c3ca5455dd4697bd0f51976af22c714e',userid ='1',location='/forumdisplay.php?f=9' ,lastactivity ='1194141449', inforum = '9' WHERE userid='1';
MySQL Error : Duplicate entry 'c3ca5455dd4697bd0f51976af22c714e' for key 1
Error Number : 1062
Date : Saturday, November 3rd 2007 @ 06:57:29 PM
Script :
http://####/forumdisplay.php?f=43
Referrer :
http://####/showthread.php?p=409464
IP Address : 82.201.243.234
Username : المدير العام
Classname : ddabase
--------------- Added [DATE]1194155348[/DATE] at [TIME]1194155348[/TIME] ---------------
plz help