Adobe Photoshop Elements Editor 2019 not responding - MacOS Mojave

One other thing to try:

Click System Preferences in the dock and open Security & Privacy

Choose the Privacy tab and the choose Accessibility

Click the lock to unlock (you may be prompted for your Apple system login password)

Then click the plus button to add the Editor and/or Organizer app. If already listed ensure it has a checkmark. See image below.

Navigate to:

To add the Editor:

Macintosh HD >> Applications >> Adobe Photoshop Elements 2019 >> Support Files

Choose (highlight) Adobe Photoshop Elements Editor.app and click open

To add the Organizer:

Macintosh HD >> Applications

Choose (highlight) Adobe Elements 2019 Organizer.app and click open

Re-lock and try launching Elements again. Even if not added to the control list, this often makes a difference after closing Security & Privacy.

Let us know if it works.

you may not have installed the program correctly, if you already had it for a long time you can restore your information or check if your payment is still valid, greetings.

you can try resetting your preferences, but your os is not compatible with pse 2019, https://helpx.adobe.com/photoshop-elements/system-requirements.html so that may not succeed.

photoshop elements: https://helpx.adobe.com/photoshop-elements/kb/preference-file-locations-photoshop-elements.html, http://www.photokaboom.com/photography/learn/Photoshop_Elements/troubleshooting/1_delete_preferences_file.htm