Software update

I can't open Zoom because I need Software version 5.16.6, or higher, to open Zoom.

When I download Zoominstaller.exe to update my software, I am told that I have to Login in order to open the file.

When I try to Login, I am told that I need Software version 5.16.6, or higher.

I am currently using version 5.16.22807.

How do I get out of this look inorder to update my so