today our VPN-Certificate on the Master expired.

I tried to create a new one with C1 like it's detailed in TID 10100262 - but I got following error message:

There was an error while trying to create the Server Certificate. You need to delet the Server Certificate, if it exists, and start the creation process again.
The error code is: -1.443

Also in iManager i got this error and it says error code is from NICI.

I searched around Novell but can't solf the problem around now.

Does anybody know what's to do?