How to fix if the application isn't open anymore on mac?

This problem occurs when the program hangs in the cache. You must correctly complete all the processes of this application and then you can restart it. If you don't know how to use the task manager and don't know how to clear the cache, then I advise you to read this article  https://osxtips.net/how-to-fix-if-the-application-is-not-open-anymore-on-mac/ . It really should help you solve this problem.

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