Hello i got an bug here since Mojang sold Minecraft for Microsoft they sent me here to get...

Hello J3fer J, I am an independent advisor and I will be happy to help you today. My name is Khaji

I understand that you are having trouble logging into Minecraft Bedrock Edition and that you have tried several solutions without success.

Verify your account: Make sure you're signed in with the same Microsoft account you purchased Minecraft with

Reinstall the game: Although you mentioned that you've already tried this, sometimes it can help to delete the game from your system, restart your PC, and then download and install the game again

Launcher Settings: Open the launcher, go to settings > accounts > click the 3 dots and delete all accounts connected to the launcher. Then, go back to the sign-in screen, sign in with the Microsoft account you used to migrate your account, and see if that resolves the issue.

If you are still having problems, I would recommend that you contact Minecraft support for further help

Thank you very much for your patience and understanding! If you need anything else, do not hesitate to contact us again.

i can't log in to my account why and whats the reason ?

I already contacted minecraft/Mojang support and they sent me here since mojang accounts got removed and this is now a microsoft account issue. I would appreciate it if both supports/communities stopped playing table tennis with my problem and gave possible solutions to this messy situation.

Hello Vbpoju,

Since this is a Mojang bug, there isn't much support we can give here on the Xbox forums. We recommend going through Mojang support specifically. You can find that here :
Minecraft Help

No sorry, the problem is on Minecraft, which I now use a Microsoft Account for, and that's why I'm confused why the Mojang Support sent me here.