Erasing - I found it. Preferences, accounts.
Thanks!

Thanks, it works, a little bit cumbersome.
But ho can I erase the old adresses?

Thanks for your advices. My device works again!!
alwi

Is there a way to change the server-address?
I cannot add a new Internet-Calendar beside the old addresses.

@Lakotaubp Looking in the bill - it's an FHD device.
Where can I find an instruction for the installer?
Thanks, alwi

Hallo,
when I mad an upgrade in October/November (?) I cannot open the preferences. Since then i never could do an new upgrade and some apps don't work no more.
Can anyone tell me, what i could do? Thanks
alwi

Hello,
4 years ago I bought the M10FHD Ubuntu Edition. Fortunately after Ubuntu ends the support, I could update to UBports.
The last update in November ended in a failure: The settings do not start anymore.
Can anyone give a solution?