Antwort #6 am: 02. April 2009, 16:19:45
Hi die Lösung für osCommerce, xt:Commerce etc.
The Fix:
1) Go to your phpmyadmin, and select the sessions table
2) Select sesskey und leeren
3) Click edit
4) It's probably set at the OSC default, which is varchar(32). This is a mistake! Change the type to INT, the length/values should stay at 32.
5) Scroll all the way across to where you see extras and select AUTOINCREMENT from the drop down box.
6) Hit save button
All 1062 Duplicate Enty errors will not be resolved. You won't get 'em again!