The log shows an exception that I have never seen before at this position :-(.
Can you give me some information about your environment:
- in wich environment is OH running?
- do you have one or two CCU resp. Raspberrymatic installations active?
- can you login to the Karaf console and issue the following command
bundle:list | grep Homematic. The output contains the exact version of the binding. This would help me to find the correct position in the source code.