MinimServer error: could not create shared folder

[TomTiDom]

Hello,

I am a new user in this forum and I already start with a problem ;-)

I bought today a MinimServer 2.2 server license and installed the software on my QNAP HS-453DX-8G NAS System.

The installation showed no issues, but when I start the MinimServer (http://XXX.XXX.XXX.XX:9790)

I receive the following error message: Safari cannot open the webpage .....

QuLog Center shows:
2023/08/13 15:25:34 System MinimServer error: could not create shared folder

This look like a "access right problem", but I have no clou what to do with it.

Can someone point me into the right direction?

Kind Regards
Tom