Network issue with Novelan binding

According to:
https://docs.openhab.org/addons/bindings/novelanheatpump1/readme.html

“port number of the heat pump to connect to Please be aware that from firmware version 1.73, Alpha Innotec has changed the port to 8889”

Try port 8889 in the cfg file

PS, please use code fences to show codes, logs… It is much easier to read!