App Store hangs when opened

The report doesn't have any of the usual suspects. However, it does show two possible adware items:

Unsigned Files:

  Launchd: ~/Library/LaunchAgents/local.mount.timemachines.plist

    Executable: /usr/bin/osascript local.mount.timemachines.scpt

    Details: Domain name invalid - possibly adware

  Launchd: ~/Library/LaunchAgents/local.mount.desktoptimemachine.plist

    Executable: /usr/bin/osascript local.mount.laptoptimemachine.scpt

    Details: Domain name invalid - possibly adware

Since you have MalwareByes running in the background and they are still there, you might either run MalwareBytes manually or check out those two files manually.

Since the problem doesn't happen in the other user account we know that there is something in your account that's causing the problem. We need to find out what. We can start out by removing all User Login items and see if there's any change. If there is add them back one at a time and test.

Also you could run Etrecheck in the other user account, save as a text file and compare with the report for your primary account to see what's different. Then try to remove one item at a time from your account to try to isolate the culprit.

One thing you can try is to boot into the Recovery volume (boot with the Command + R keys held down) and run Disk First Aid with Disk Utility. Then reboot normally and text.

I have this problem. Identical versions and results.

1) I created a new dummy account and when logged into that account the problem does NOT occur.

2) I have logged out and in

3) I have rebooted in Safe mode

4) I have deleted the cache files in ~/Library/Caches/com.apple.appstore*

Nothing seems to fix it. Where else might there be relevant info I can clear.

Attached

Hello, ZerozWasTaken.

Thank you for using Apple Support Communities.

From what I've read is that you're unable to get the App Store to work. I'd like to help. Try seeing if you can access the store from a test user account and safe mode:

How to test an issue in another user account on your Mac

Use safe mode to isolate issues with your Mac

Have you tried signing out of your Apple ID, restarting the Mac and sign back in to see if that helps?

Keep me updated.

Cheers!

Download and run Etrecheck. Etrecheck is a diagnostic tool that was developed by one of the most respected users here in the ASC and recommended by Apple Support  to provide a snapshot of the system and help identify the more obvious culprits that can adversely affect a Mac's performance.

Copy the report

and use the Add Text button to include the report in your reply. How to use the Add Text Feature When Posting Large Amounts of Text, i.e. an Etrecheck Report

IMPORTANT:

Before running Etrecheck assign Full Disk Access to Etrecheck so that it can get additional information from the Console and log files for the report:

ALSO:

Then we can examine the report and see if we can determine the root of the problem.