[SOLVED] i2c app wont open

[stlry]

Hi,

the i2c app  (2.1.0)  on my system wont open. I'm on Pi 4, tried to open it from Terminal. First Error was "Could not open file /dev/i2c-0...". After adding i2c-0 to the config text, this is gone, but now i still get 

File "/usr/lib/python3/dist-packages/openplotterI2c/openplotterI2c.py", line 222, in readSensors
    if i['pipeElements'][0]['options']['type']=='SignalK':
KeyError: 'type'

There is no entries under [i2c] in openplotter.conf.
Any Ideas how to fix it?

Thanks!