Hi themselves,

How did you fix the 0 id user (under MySQL 5.2x).

I tried INSERT INTO `users` VALUES (0, '', '', '', 0, 0, 0, '', '', 0, 0, 0, 0, NULL, '', '', '', NULL,3600,'en');

but it didn't work => same issue as previously for anonymous user.

i found my INSERTED row with an id much higher than 0 (last users id).

I updated this row by setting id=0.

And Now it works.

Thank you very much. You solved this.