I have Zulip desktop application installed on Mojave 10.14.6, and I often can not open Zulip windows. When I right click on the Zulip icon in the Dock and select "show all windows", I just see the message "no windows available". I've tried quitting and restarting the application, selecting "show" in the menu, reset (cmd-R), hard reset (shift-cmd-R) and various other menu items (such as failover organizations to display), no effect. I even restarted my laptop without being able to recover.
I was able to recover the application once by uninstalling and reinstalling, but it quickly disappeared again.
Is there any way to solve this problem in Zulip in particular or in other applications in general?