java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at com.evacipated.cardcrawl.modthespire.Patcher.initializeMods(Patcher.java:49)
at com.evacipated.cardcrawl.modthespire.Loader.runMods(Loader.java:501)
at com.evacipated.cardcrawl.modthespire.ui.ModSelectWindow.lambda$null$1(ModSelectWindow.java:285)
at com.evacipated.cardcrawl.modthespire.ui.ModSelectWindow$$Lambda$45/2000824283.run(Unknown Source)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException
at basemod.BaseMod.subscribeIfInstance(BaseMod.java:2844)
at basemod.BaseMod.subscribe(BaseMod.java:2864)
at feminization.FeminizationMod.<init>(FeminizationMod.java:21)
at feminization.FeminizationMod.initialize(FeminizationMod.java:17)
... 9 more
It went like this