Synology NAS, MinimServer not running after changing disks.

[machare]

I have a Synology NAS DS215J which has been running MinimServer quite happily for some years. One reason for having it was that I could then play the BBC HLS radio streams on my Naim equipment. The NAS is now running DSM 6.2.2-25426 Update 2 and Java 8.

The NAS had two 3TB disks in it. I have changed these one at a time to two 4TB disks. Not to difficult as all the data that I have would just fit on a single 3TB disk.

I managed to retain the Synology DSM settings but some of the extra packages that I have installed such as "Hyper Backup" had to be repaired and then reconfigured.

I could not do this with MinimServer as I don't think the original version is still available. For this reason I downloaded MinimServer 2 and applied for a 1 month licence.

Now when I open the new package I get a web page with "Status License Profles" at the top. It shows the correct content directory. If I click "Rescan" and the a few moments later

"Status" there is a red error message "Integrity check failed for file minimserver.config; select a profile and relaunch". If I click "Profiles" and then select the default profile I get an error message on my web page:
"java.lang.NoSuchMethodError: 'java.lang.String org.jminim.Context.selectProfile(java.lang.String, org.jminim.Component, java.lang.String[])'"

As a result of a google search I have deleted the files:

minimserver.config.lock
minimserver.config.error

from /volume1/MinimServer/appData.

The file minimserver.config shows that I have a trial licence type.


How do I get MinimServer to run properly?