Deobfuscation failed. Please open a ticket on GitHub and provide the following error:

[Connor800RK]

java.util.ConcurrentModificationException
at java.util.HashMap$Values.forEach(Unknown Source)
at com.javadeobfuscator.deobfuscator.Deobfuscator.start(Deobfuscator.java:455)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.javadeobfuscator.deobfuscator.ui.wrap.Deobfuscator.run(Deobfuscator.java:88)
at com.javadeobfuscator.deobfuscator.ui.SwingWindow.lambda$null$21(SwingWindow.java:1108)
at java.lang.Thread.run(Unknown Source)

[Janmm14]

Did you alter transformers in GUI while running?

[Connor800RK]

Did you alter transforers in GUI while running?

No