Receiving “Your connection has timed out and you cannot join the meeting” when joining a meeting that has not started

if you are getting this error need to do something

Search in your project

<script src="https://source.zoom.us/zoom-meeting-1.7.8.min.js"></script>
and replace with
<script src="https://source.zoom.us/zoom-meeting-2.1.1.min.js"></script>

[enter image description here][1]
After doing that error will go away
[enter image description here][2]

[1]: https://i.stack.imgur.com/6LXwJ.png
[2]: https://i.stack.imgur.com/eZqyF.png

I host a recurring meeting, but I’m sick and need to cancel. I don’t have regular registrants, so is there a way to let people know the meeting is cancelled when they attempt to log in? Is there a way to leave a message in a waiting room about a cancellation? 

I have reviewed several pages of questions related to Polling in Meetings and do not see this question answered.  Apologies if I've missed something.

We have long had the feature turned on to allow hosts to create a poll before OR DURING a meeting.  I have one Pro user who never sees the option to begin a Poll in real time during an active meeting.   When I start a meeting myself, as another Pro user, I also don't see a Polling option.  

We are both updated on version 5.8.7.2058.  I have not inquired of anyone else in our organization if they are encountering the same issue, but if two of us are, presumably everyone is.  Screenshot attached shows my Zoom menu bar (nothing under More except Live Stream options).
Please advise.

Thank you,

Amber

Is there a way to change hosts every few weeks within the same pro Zoom account? This is for a weekly meeting in which we want to have a volunteer serve as host for one month at a time. We would need for that person to be able host the recurring weekly meeting  without having to go through the account holder. They would need to be able to start and host the meeting including having control of muting, a waiting room, etc.

Hello there.. during a meeting, when the host unmute me, after that I still have to unmute myself to answer.. is there any way I don't need go unmute myself Everytime before speaking and I automatically go to unmute as soon the host unmute me.. 

Hope I make myself clear 🤔

Thank you 

I want to host a meeting and let people inside my org to join and share contents, opinion (it means they can do everything as usual) but I want people outside the org to join (observe) only. They can't turn on mic, share screen... 

Can zoom do this?