@krabat the addon app you mentioned from the other site is well known to cause problems., besides the fact that we won’t support it here due.
Someone else posted a similar problem, where they had that installed and on upgrade to Jarvis it keep looping into the sadface because Kodi wouldn’t start.
Check my post Hard Drive Install ATV1 - #65 by Spinner for more details.
The place you got the addon will have to help you for support, because they break our policy.
https://discourse.osmc.tv/faq#piracy
You should in fact be able to post logs, since Kodi not starting doesn’t mean that you can’t ssh into it.
If you can ssh in with user and password of osmc, use the command grab-logs.
As @Dilligaf says, try renaming the .kodi directory.
That will force Kodi to create a new one, like a fresh install.
If that works, then you know that it’s an addon or less likely, some corrupt files on the .kodi directory.
If you are do a clean install from scratch, I would update to the latest version immediately, then configure your setttings.
That way you have Jarvis installed and updated first.
Then install what you want, one at a time, and make sure they work well before installing the next one.
Don’t use one of the automated installers/configurators, they cause problems.
It’s usually best to manually install and configure, and it gives the advantage of knowing exactly how things are set up.