Issue: Exit Code 128 / Can't update https://github.com/hassio-addons/repository

Hi, I have a block of error messages, where I find 2 issues on Github and 1 forum post related to.
My error messages in Supervisor log are:

20-11-23 06:52:20 ERROR (MainThread) [supervisor.store.git] Can't update https://github.com/hassio-addons/repository repo: Cmd('git') failed due to: exit code(128)
  cmdline: git fetch --depth=1 --update-shallow -v origin
  stderr: 'error: object file .git/objects/1c/ddf4051e305b0b3952943108f865d75a2d7b2f is empty
fatal: loose object 1cddf4051e305b0b3952943108f865d75a2d7b2f (stored in .git/objects/1c/ddf4051e305b0b3952943108f865d75a2d7b2f) is corrupt'.
20-11-23 06:52:21 ERROR (MainThread) [supervisor.utils.json] Can't read json from /data/addons/git/a0d7b954/motioneye/config.json: Expecting value: line 1 column 1 (char 0)
20-11-23 06:52:21 WARNING (MainThread) [supervisor.store.data] Can't read /data/addons/git/a0d7b954/motioneye/config.json from repository a0d7b954

The last line is a warning only.
Since the top line is the 1st message I would like to take care about that line 1st.
There are following issues mentioned:

Here @frenck mentioned:

Remove the repository from the add-on store…

Does that mean, I have to de-install all add-ons? and reinstall afterwards again?

Here a complete different approach has been tried with the DNS name server.
I added already 8.8.8.8, but no solution for me…

Forum post

Has anyone a suggestion, what to do next?
I have running quite some custom-components and 3 add-ons (with Deconz being one of it.
If I have to deinstall Deconz - I might have problems with reconfiguring all sensors/entities I have connected to the Conbee II…

Regards,
Jörg