Error when adding a method to a newly created class

[ricnar456]

Traceback (most recent call last):
File "C:\Program Files/IDA Professional 9.1/plugins\classy\gui.py", line 501, in handle_add_method
self.update_fields()
File "C:\Program Files/IDA Professional 9.1/plugins\classy\gui.py", line 340, in update_fields
address_item = QtWidgets.QTableWidgetItem(m.ea)
OverflowError: argument 1 overflowed: value must be in the range -2147483648 to 2147483647