Duplicate entry

[uwe]

Hello, ive played around with ispcp and made multiple copies of gui, im not sure what i did wrong, but now i keep getting Duplicate entry error, for example Duplicate entry 'abc12321fxxx951d320fyyyexxx148f' for key 1 , and i get a similar message for every user, reseller, admin i have on ispcp, i can see the phptmp directory empty, and when i try to login a file name sess_somestring where somestring is similar to the entry above is created, and then i get the mentioned error on the client (web browser) any hints what i might be doing wrong?

btw, this ispcp is being accessed by multiple users all from the same ip, either they are connecting through this proxy or in a lan behind gateway and without proxy.

Edit: im not sure its relevent, i followed the howto on configuring ispcp for law resources, now i dont get that error, but i see in the error log :
[Sat Mar 22 09:55:45 2008] [error] [client xx.xx.xx.xx] FastCGI: comm with server "/var/www/fcgi/master/php5-fcgi-starter" aborted: idle timeout (30 sec)
[Sat Mar 22 09:55:45 2008] [error] [client xx.xx.xx.xx] FastCGI: incomplete headers (0 bytes) received from server "/var/www/fcgi/master/php5-fcgi-starter"