Batch Segment Images error

[Theresa-S]

When trying to apply a classifier I created on a other images using the Batch Segment Images function, it created two empty images and then stopped, yielding the following error message:

WARNING: core mtj jar files are not available as resources to this classloader (sun.misc.Launcher$AppClassLoader@c387f44)
java.lang.IllegalArgumentExceptionjava.lang.IllegalArgumentExceptionjava.lang.IllegalArgumentExceptionjava.lang.IllegalArgumentExceptionjava.lang.IllegalArgumentExceptionjava.lang.IllegalArgumentExceptionjava.lang.IllegalArgumentExceptionjava.lang.IllegalArgumentException

This is the first time I used the labkit plugin, so I'm a bit clueless. What did I do wrong?