MinimServer package not found

[s_sachin]

I have the Minim server V 2.1.2 installed on QNAP TS230 NAS and have been getting this error since couple of weeks now

License server error 500: [5f0bbcee] Too many matching activation records

As a result it says server offline on my Lumin music streamer and its not able to play any files.
I have tried reinstalling the app, but same error

Any help greatly appreciated

thanks