My account is linked to my 2ds but I can't log in

[nimble coral]

Whe i try to log in it appears this error, I tried changing the language to french, I tried to restore my LocalFriendCodeSeed_B using all the options in the Restore LFCS script for GM9, Nimbus and Luma are also in their latest versions. In the first login it seemed that it “worked”, it asked me about if I wanted the console mii or the account one, so I selected the console mii, and then the error code appeared but it seemed like it worked. Then I tried to play mario kart online but the error 002-0101 appeared, so I reopen settings and now it won't let me log in.
Please, can someone help me?

[sour warren]

002-0101 (3DS/2DS)

Support code detected, press to expand information

[nimble coral]

022-2402

[sour warren]

022-2402 (3DS/2DS)

Support code detected, press to expand information

[plush needle]

My account is linked to my 2ds but I can't log in [002-0101 & 022-2402]

[plush needle]

Eeek, I don't like the sound of that 002-0101 error. There is likely something wrong about your console-unique files, one of those being the LFCS_B that you tried to restore already

Does your own 3DS friend code (on Pretendo servers) appear as question marks? (????-????-????)

[nimble coral]

Yes, when I open it appears the same error as in mario kart, 002-0101, and my friend code is all question marks

[sour warren]

002-0101 (3DS/2DS)

Support code detected, press to expand information

[plush needle]

Could you run a Ctrcheck and share the result of it here? It will be on the top screen after the Ctrcheck script finishes.
https://wiki.hacks.guide/wiki/3DS:Ctrcheck

Note: if during Section II the script is saying there are invalid files and it prompts you for data recovery, press B to decline it, but otherwise, follow the guide as normal

[plush needle]

Okay yeah, SecureInfo is invalid

I'll send you over to the Nintendo Homebrew server. Head over to 3ds-assistance-1 (or 2) and mention that you are getting Pretendo errors along with the Ctrcheck photo.
discord.gg/nintendohomebrew

The data recovery thing in Ctrcheck will fix that issue for all I know, but who knows, i just don't feel confident enough to recommend it myself directly