Help for existing user - old Mac mini 2012

[Zee9]

I have a Mac mini that I was using with MinimServer as a server for my ripped music and now suddenly it just won't work. I made the mistake of downloading version 2.2 and updating the java only to realize that none of that is compatible with my old MacMini running macOS 10.13

im a novice at this stuff but it worked perfectly before. can anyone help with this please.

regards

Zee