For Windows APP problem, I would like to suggest you follow the steps below to troubleshoot the problem.
1. Verifying whether just the Photo APP had the problem, if so, try to reinstall it for test.
2. Use Windows APP troubleshooter to fix this problem.
Windows App troubleshooter:
3. Run the following in a Command Window (CMD) to re-register the Store App:
powershell -ExecutionPolicy Unrestricted Add-AppxPackage -DisableDevelopmentMode -Register $Env:SystemRoot\WinStore\AppxManifest.xml
For more solution to fix Windows APP problem, you can refer to the link below.
What to do if your Windows 8 Modern App fails to start:
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