I do have the same Problem here.
I've freshly installed openSuse Leap 15.4 with all current updates and followed the install instructions for enpass (https://www.enpass.io/support/kb/general/how-to-install-enpass-on-linux/). The Update error still appears with the massage 'Permission to access 'https://yum.enpass.io/stable/x86_64/media.1/media' denied.'
Against the experience from BeamMeUp, adding the key and repo with Yast did not make a difference on my system. Maybe the switch to Tumbleweed is doing the trick, but this is not an option for me.
