SQL-DATENBANK FEHLER!

Datenbank Fehler in MyPHPChat: Ungültiger SQL-Befehl: UPDATE chat1_trafficstats SET =+ WHERE monat='2' AND jahr='2012'
Mysql Fehler: 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 '=+ WHERE monat='2' AND jahr='2012'' at line 1
Mysql Fehler Nummer: 1064
PHP Version: 5.2.6-1+lenny10
Datum 05.02.2012 @ 03:03
Script: /chat/
Referer: