MSFSunable to load

After three months of interesting use,I got a shock yesterday when MSFS refused to load.
When I double clicked the desk top icon, nothing happened, and an app appeared asking if I wanted to make changes to my device. It was titled from Microsoft “Store Package Dependency Installer” from
Microsoft Windows, with an option of selecting yes or no.
Selecting yes brought up a page from Microsoft Corporation Gaming Services.
I am rather baffled by this, and would appreciate an answer as to what I must do to resolve the situation, many thanks roytc.