minimserver doesn't start on windows server 2012

[dikkiedirk]

I can't access my music through minimserver. I have minimserver running as a server on Windows Server 2012 R2 but this doesn't started on booting at the moment. When I manually start minimserver I am greeted with a red icon.

This is in the log:
MinimServer 0.8.4, Copyright © 2012-2016 Simon Nash. All rights reserved.
Java™ SE Runtime Environment (build 1.8.0_151-b12)
Java HotSpot™ Client VM (build 25.151-b12, mixed mode)
Platform default charset is windows-1252
System look and feel is com.sun.java.swing.plaf.windows.WindowsLookAndFeel
Unable to delete old module file C:\Users\Administrator\AppData\Roaming\MinimServer\libext\jminim-0.7.114.jar
Startup complete
How can I fix this?