Caused by: java.lang.NoSuchFieldError: wood
at waterwheel.Waterwheel_MOD.onModInit2(Waterwheel_MOD.java:81)
at gregapi.api.Abstract_Mod.onModInit(Abstract_Mod.java:213)
… 42 more
that is the Error itself, this looks like it was not obfuscated and you gave the link to the deobfuscated version?