Hello there! I am Charity, I'm an Independent Advisor. I'm glad to help you today!
Please pess Windows + R, type wsreset.exe, and press Enter. This will clear the Microsoft Store cache.
Then, Right-click the Minecraft Bedrock Edition shortcut or executable file and select Run as administrator.
Kind Regards,
Charity
Please note that things might need more than one reply to completely resolve your issue, as it will completely depend on the complexity of the question and the amount of detail that you have provided me.