Crash report: https://paste.dimdev.org/surakenebo.mccrash

java.lang.Error: java.lang.reflect.InvocationTargetException
at slimeknights.mantle.pulsar.internal.BusExceptionHandler.handle(BusExceptionHandler.java:30)
at slimeknights.mantle.pulsar.flightpath.Flightpath.post(Flightpath.java:92)
at slimeknights.mantle.pulsar.control.PulseManager.propagateEvent(PulseManager.java:206)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

Strange thing: it very similar to 2 year old issue #72

Look like this s problem at KnightMiner/Inspirations side KnightMiner/Inspirations#89