Hi,
1.Is there any update has been patched recently? Did the issue occur after any changes made?
2.Kindly run windows store troubleshooter to verify if any issue has been detected.
Fix problems with apps from Microsoft Store
https://support.microsoft.com/en-us/account-billing/fix-problems-with-apps-from-microsoft-store-93ed0bcf-9c12-3df6-6dda-92ec5d0415ac
3.Please also use System File Checker scan to check if any system related errors.
• Search for 'command prompt' using Cortana or Windows Search.
• From results, right click on Command Prompt and select Run as administrator.
• Type sfc /scannow command and press Enter key.
• Let the command complete and then reboot the machine.
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Hope this helps and please help to accept as Answer if the response is useful.
Thanks,
Jenny