[SOLVED] Upgraded to 14 - no openplotter!

[SkipperEarly]

Have just updated to 14.x on my rpi 3 and 2 and in both cases I cannot start op anymore, have done also the reforced update in cmd and get folowing message.+

pi@op010:~ $ openplotter
Traceback (most recent call last):
File "/home/pi/.config/openplotter/openplotter", line 3503, in <module>
MainFrame().Show()
File "/home/pi/.config/openplotter/openplotter", line 267, in __init__
self.read_i2c()
File "/home/pi/.config/openplotter/openplotter", line 1873, in read_i2c
self.list_i2c.Append([str©, name, address, magn_list[c], iii[0], str(iii[1]), str(iii[2])])
UnboundLocalError: local variable 'magn_list' referenced before assignment

What to do now? Do I need to start with a fresh image or is there just some config file to get amended?