Thank you for the Update, this looks very good and works better.

But if I go in Backend to CjForum > Backend > Topics > New > put in some text and save, it gives me the following error:

Es ist ein Fehler aufgetreten.
1364 Field 'handle' doesn't have a default value
Zurück zum Dashboard

However, the topic seems to be saved. But when I open the saved topic an save it again, same error occurs again. And again its saved anyway :)