LG Therma V heat pump modbus control

hello, I followed your choices and installed the components as described, also using your code. HA gives me this error log how can I fix it?
Logger: homeassistant.components.modbus.base_platform
Source: components/modbus/base_platform.py:217
Integration: Modbus (documentation, issues)
First occurred: 25 agosto 2023 alle ore 09:52:43 (588140 occurrences)
Last logged: 10:12:15

Received 0 bytes, unpack error unpack requires a buffer of 2 bytes