Penny Pincher will break after every update due to opcodes being reshuffled. The opcodes are generally updated pretty quickly, you can see previous PRs here.
After opcodes are updated, restarting should get you the new opcodes and PennyPincher will work again. If you don't get an update on restart, you can delete %appdata%\xivlauncher\addon to force a redownload.
Penny Pincher will break after every update due to opcodes being reshuffled. The opcodes are generally updated pretty quickly, you can see previous PRs here. After opcodes are updated, restarting should get you the new opcodes and PennyPincher will work again. If you don't get an update on restart, you can delete %appdata%\xivlauncher\addon to force a redownload.