I decided to start up from scratch. Afterwards I will install only one powerplug nothing else. I will report my experience here.
That’s no problem for now, because it is no productive and complex running system. Once my installation has reached this target, is there any way to backup and restore a running system in case there will appear a similar problem in the future. Than I wouldn’t like to start up from scratch again. Are this advises (openHAB Community Backing/Restoring up openHAB2.x) and (openHAB 2 on Linux, Backup and Restore) suitable for this?
Thanks for your assistance
Christoph