MC Bedrock Edition uses Xbox accounts to sign in. If you are on Windows, please make sure the Xbox,Xbox game bar & Xbox Identity Provider apps are installed. If they are not, got to the Microsoft Store and install them there. After doing this restart your device and try again.
Aneeq Weerasinghe
Hi @Chingis!
MC Bedrock Edition uses Xbox accounts to sign in. If you are on Windows, please make sure the Xbox, Xbox game bar & Xbox Identity Provider apps are installed. If they are not, got to the Microsoft Store and install them there. After doing this restart your device and try again.