Looks like for the particular timeslot no user is available. Can you try other timeslots if those work?

now it's working fine wtf @Hariom Balhara

@Emrysal would know more details about it and when exactly this situation might arise

Can you reinstall your Zoom integration? @iSpeak Nerd

@Milos I did just now, but it's not just zoom that's messing up. huddle, zoom, and even cal weren't registering