Hello,
Thank you for using Microsoft products and posting to the community.
Based on the screenshot, it seems that there is a corruption in the registry.
What were you doing before the issue occurs (like installing an update or certain software)?
You can try creating a new user profile by creating a local administrator account, and see whether the issue also happens there.
To do so, right-click Start->Terminal/PowerShell/Command prompt (Admin), and enter the following commands:
net user /add user1 pass1
net localgroup administrators user1 /add
(substitute "user1" and "pass1" with the username and password of the new user.)
After creating the user, press Windows+L to return to the login screen. Select the new user in the lower-left, and log in. See whether you can open the store with the new account. Please note that if you cannot, you need to perform a system reinstallation, so please back up all your personal data to offline storage (like USB sticks, external hard drives, and memory cards) beforehand to prevent data loss.
Please feel free to let me know how it goes.
Best Regards,
Johann - MSFT | Microsoft Community Support Specialist