Hello Support,
I too am having the same problem with not being able to open Enpass from the Windows Store. I've uninstalled it twice with no luck as the app doesn't respond, so I have to close it. This seems to be happening after a security update to Windows. I am on Win10 Pro Version 20H2 (OS Build 19042.685).
The version of Enpass from the Windows Store is: 6.5.2.0
Below is the Application Log with Error and Event ID 1002 each time Enpass doesn't open to where I have to force a close of the program:
The program Enpass.exe version 6.5.2.0 stopped interacting with Windows