okay i tried this too...
But there are still Error 403 Forbidden on the Websites
The Update went good without any errors exept a Problem restarting the imscp services at the End...I restarted the Server.
I did the following after the Upgrade now:
and changed from php-fpm to fcgi
after that I got "Internal Error 500"
I started perl imscp-autoinstall -dr http
and changed back to php-fpm
Now the Sites seem to work. But is this the right way?