Java error on restart

[WigglyWoo]

Hello,

I've been using MinimServer with a Melco N1ZS40 for quite a while; after turning the Melco off and back on again today, I'm now getting this error message from MinimServer:

Media server status for MinimServer[N1ZS40]: Error

Unexpected exception java.lang.StringIndexOutOfBoundsException: begin -1, end 5, length 5

Any ideas? I've tried turning the Melco off, then on again, and also initiating a Restart in MinimServer scan, but still getting the same error. The Melco seems to be fine.

More info on the build in use:
MinimWatch 2.2 update 119
Java™ SE Runtime Environment (build 20.0.1+9-29)
Java HotSpot™ 64-Bit Server VM (build 20.0.1+9-29, mixed mode, sharing)
Java runtime options: -Dfile.encoding=UTF-8

Thanks