Windows store app is not working/opening.

1. Press Windows Key + R to open the Run
2. Type wsreset.exe and hit Enter
3. A blank Command Prompt window will pop up. Don't close it. It will automatically disappear after about 10–30 seconds, and the Store should launch on its own
4. Go to Settings > Apps > Installed Apps > Microsoft Store > Advanced Options from the 3 dots > Repair / Reset.
   
5. Open PowerShell as Administrator and Run this command:
   $$\text{Get-AppxPackage -AllUsers *WindowsStore* | Foreach \{Add-AppxPackage -DisableDevelopmentMode -Register "\$($\_.InstallLocation)\textbackslash AppXManifest.xml"\}}$$
   
6. Check Date, Time, and Region (Settings > Time & Language > Date & Time) + Ensure Set time automatically and Set time zone automatically are both toggled On
7. Lastly Open CMD and run the below commands then Restart your PC
   sfc /scannow
dism /online /cleanup-image /restorehealth

Good Luck!