Cannot open TauCetiStation

[4310V343k]

Output:

java.lang.IllegalArgumentException: Illegal group reference
	at java.util.regex.Matcher.appendReplacement(Matcher.java:857)
	at com.github.tgstation.fastdmm.objtree.ObjectTree.completeTree(ObjectTree.java:191)
	at com.github.tgstation.fastdmm.FastDMM$3.run(FastDMM.java:626)
Exception in thread "Thread-7" java.lang.NullPointerException
	at com.github.tgstation.fastdmm.FastDMM.addToRecent(FastDMM.java:1167)
	at com.github.tgstation.fastdmm.FastDMM.access$600(FastDMM.java:56)
	at com.github.tgstation.fastdmm.FastDMM$3.run(FastDMM.java:647)

https://github.com/TauCetiStation/TauCetiClassic