Jitsi Meet Docker: How to disable a failed to access message and multi-users in room crash meeting

Hi,

I have almost completed my jitsi install. I have a few questions:

How do I disable the “failed to access your microphone/failed to access your camera” messages?

Today, when I had a user join a meeting to test, the meeting crashed initially. After maybe 3 refreshes, the room finally stayed connected. This is not always the case. Sometimes it works without crashing. What could be causing this?

I have the JVB_PORT set to 10000 udp, and enabled the port on a security group. However, when I try to share my screen with another user, they continue to get a grey screen instead of what I am sharing. Why is this?

Thanks