Opening on Mac does not work


I downloaded the Nextcloud App for Mac today. I was able to install it and synchronise it with my cloud. However, some of my folders are missing. Therefore, I wanted to open the app, but it didn’t work. I am not able to open Nextcloud. Nothing happens when I do so. Even reinstalling doesn’t change anything.

I am using macOS Big Sur 11.6

I reported this bug at Github and they told me to write my problem here in the forum. I hope you can help me. Thank you.