impossible to join

Hello @Yaroslava 

I believe this may have been related to an issue Zoom experienced yesterday. You can find out more on Zoom's status page at: https://status.zoom.us/incidents/r5pcn7rfbwl1 

The issue has since been resolved. If you are still experiencing issues I think that the next option would be to reach out to Zoom Support for further analysis and investigation. You can find out more on reaching support here: https://support.zoom.us/hc/en-us/articles/201362003-Zoom-technical-support. I hope this helps and please make sure to mark the solution as accepted if this information is what you needed.