app quits

Hello cromjo,

Thanks for posting in the Apple Support Communities. We're happy to look into this with you.

There are a couple reasons an app may quit unexpectedly. It could be an update is needed, there is a compatibility issue, or the software could be corrupted in some way. The following article outlines the best troubleshooting options to try and help sort out the cause and find a solution.

If an app freezes or quits unexpectedly on Mac - Apple Support

- If an app doesn’t quit as expected, or it’s unresponsive, you can force quit the app (you may lose unsaved changes). Choose Apple menu  > Force Quit, select the app in the dialog that appears, then click Force Quit.

- If the app quit, reopen it by clicking Reopen in the dialog that appears.

- Restart your Mac by choosing Apple menu > Restart.

- Make sure the app is compatible with your version of macOS.

- Open another file in the app. There may be a problem with the original file.

- Check for updates to your software.

- Disconnect any peripheral devices you just connected (for example, a printer). They may not be compatible with your version of macOS.

- Uninstall any app plug-ins or enhancements from other manufacturers.

If you recently updated the app or macOS, a plug-in or enhancement you installed may no longer be compatible.

- Diagnose problems with your Mac to learn whether hardware you installed, such as additional memory, is incompatible, improperly installed, or defective.

If those actions don't help, try booting up in safe mode and testing the application. This process will prevent certain software from loading when starting up your Mac and it'll perform a basic check of your startup disk similar to First Aid. Be sure to review all information provided in How to use safe mode on your Mac - Apple Support, as it will walk you through the process and help you determine how to proceed based on if the issue persists it doesn't while in safe mode.

Best regards.