[hdmi]

I have the exact same problem (fresh Kodi Flatpak on Kubuntu 21.10, KDE Plasma 5.22.5, Qt 5.15.2, X11), and I can confirm the above solution works (obs: kept MythTV which I use). It seems to be indeed a problem with the ArgusTV addon.

And very timely answer, after a brief struggle with the problem, just stumbled upon this thread 4 minutes after the workaround had been posted! Thanks, wsnipex!

[black_eagle]

2. delete /.var/app/tv.kodi.Kodi/data/userdata/Database/Addons33.db

Shouldn't that be ~/.var/app/tv.kodi.Kodi/data/userdata/Database/Addons33.db ?  Took me ages to figure that out, doh!

[zmaint]

Thank you wsnipex, made the changes and this is now working and building my library.   Much appreciate the help!

[wsnipex]

2. delete /.var/app/tv.kodi.Kodi/data/userdata/Database/Addons33.db

Shouldn't that be ~/.var/app/tv.kodi.Kodi/data/userdata/Database/Addons33.db ?  Took me ages to figure that out, doh!

indeed, fixed in my post.

btw, https://github.com/flathub/tv.kodi.Kodi/pull/148 is where we're looking into a proper fix. Anyone is most welcome to test the last build.

[boomtown]

That cured it! Up and stable.

System did ask to disable the PVR addons on 1st start, Repled no to each and its all good. Thanks muchly

[ltai0001]

Get the exact same error - I dont have any "pvr" listed in my addon-manifest.xml file
here is the log file

[wsnipex]

did you try this already?
delete ~/.var/app/tv.kodi.Kodi/data/userdata/Database/Addons33.db

[ltai0001]

Just did and it solved the problem-
At least for now