Change in Zoom meeting window access

Since yesterday, the Zoom app has closed the meetings window by itself after a few hours without using it, making me reopen it by using my email etc... it was ready to be used before yesterday whenever I wanted. I just needed to open my computer and the Zoom meeting window would be there, but now I have to sign in again. It has happened in the morning, when I start using Zoom. Is there anything I can do to have the Zoom meetings window permanently open in my laptop status bar?