Only default Kunena template Aurelia available

I was trying to do the suggestion of Hung in this topic: www.9themestore.com/index.php/forum/nts-...hind-posts-and-karma
But it didn't go well at all.
The template Samurai is in the backend as default, but the default teplate Aurelia is displayed.
Reinstalling Samurai 6.0.2 or 6.0.3 does not solve the problem.
With both installations the message appears that the template is not compatible with the latest Kunena version.

How do I get the Samurai template active again?

Website is: bmwcruiser.nl

Hi WoodyF4u,

Please provide us a back-end account via mail box. We will try to check this issue on your website.

Regards,

Hi Hung,
I send you the credentials by email.
I hope you can find a solution.

I just saw that you managed to solve it.
Thank you very much.