Zoom Entry Issues

[annaogryzova]

I had a conference with 20 people, but unfortunately, I couldn't log into Zoom for unknown reasons. When I entered the conference, the participants couldn't hear me, and then they couldn't see me. When I switched my account and logged in under someone else's account, Zoom granted access to audio and video. The device I used to log in is fine, as I constantly work from it in Zoom. What could be the reason for this problem?