Can't start D20pro linux

So it's 6:12 pm saturday for my first online d20game and I get this with no changes to my install what so ever.

Code:

kenny@nilas ~/Documents/games/d20pro/D20PRO-3.5.7 $ [19 Mar 2016 18:09:41,637] INFO   D20                       | D20PRO version: 3.5.7
[19 Mar 2016 18:09:41,797] INFO   D20                       | Java version: 9-ea
[19 Mar 2016 18:09:41,918] WARN   HintsManager              | No hints file found at: res/ContextHints.xml
[19 Mar 2016 18:09:44,582] ERROR  BlockerControl            | Unexpected exception: 
java.lang.ExceptionInInitializerError
	at com.thoughtworks.xstream.XStream.<init>(XStream.java:145)
	at com.thoughtworks.xstream.XStream.<init>(XStream.java:181)
	at com.thoughtworks.xstream.XStream.<init>(XStream.java:156)
	at com.mindgene.d20.common.util.XML.buildXStream(XML.java:30)
	at com.mindgene.d20.common.util.XML.verifyInitialized(XML.java:63)
	at com.mindgene.d20.common.util.XML.fromXML(XML.java:282)
	at com.mindgene.d20.common.util.XML.fromXML(XML.java:332)
	at com.mindgene.d20.common.live.LiveFrameWRP.prefRead(LiveFrameWRP.java:362)
	at com.mindgene.d20.common.live.LivePanel_Welcome.initialize(LivePanel_Welcome.java:259)
	at com.mindgene.d20.common.live.LiveFrameWRP$InitializePanelTask.work(LiveFrameWRP.java:259)
	at com.mindgene.d20.laf.BlockerControl.run(BlockerControl.java:224)
	at java.lang.Thread.run(Thread.java:804)
	at com.mindgene.common.threading.SafeThread.safeRun(SafeThread.java:187)
	at com.mindgene.common.threading.SafeThread.run(SafeThread.java:195)
Caused by: java.lang.NumberFormatException: For input string: "9-e"
	at jdk.internal.math.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:2054)
	at jdk.internal.math.FloatingDecimal.parseFloat(FloatingDecimal.java:122)
	at java.lang.Float.parseFloat(Float.java:451)
	at com.thoughtworks.xstream.core.JVM.<clinit>(JVM.java:15)
	... 14 more

My players are um... less than happy or impressed.

 

This worked, but it took almost an hour to figure out what was wrong for a moment.