Error 2123-0011 when launching games on CFW

[AintFogg]

So I updated my switch lite to FW 20.0.1 (yes, I know...) and updated atmosphere and everything using Sthetix's 1.9.1 prerelease HATS pack. Everything went great: updated FW on sysmmc and emummc using daybreak.
Now, I cannot open any game on CFW anymore, not even cartridge games. When I try, I get error 2123-0011 and nothing happens.

I tried updating sys and sig patches manually even though it should be in the hats pack, unlinking and linking nintendo account using linkhalo, not sure what to try next.

I've read that the error could come from the blanked prodinfo but I really don't know whet I should do with it.

What should I do?

 

[icegod]

Does your homebrew open? If yes:

I would advice using Tinfoil to spoof a linked NSO account. Could be that Linkhalo does the same, but never used that app, so worth trying Tinfoil. The error has to do with online connectivity, so this should work.

 

[thesjaakspoiler]

Yes, PRODINFO cannot be blank anymore because it gives an error with the latest CFW.
So you need to put the right information back again.
If you have a NAND backup before you cleared the PRODINFO then you should be able to get all information from it.

I have never tried this tool but you could try added a random serial number.
https://github.com/sthetix/PRODIFY
You might get banned with a random serial number maybe.