Problem with sound and picture

Hello,
I am testing your plugin in order to include it in a future project.
I am currently experiencing a problem.
I installed a version 5.5.3 of WordPress because I thought there was a compatibility issue with version 5.6, but the problem still exists.
The installation is carried out correctly, the creation of a new meeting works, so far no problem.

When I enter the code to access the meeting it works, however I have an error message concerning the microphone and the camera.

The message is as follows:
“Audio and video error: cannot read property ‘getUserMedia’ of undefined”

the access code for the meeting is : 8036355

Do you know why it doesn’t work?

Thank you.
Regards,

Franck Uvalle

The page I need help with: [log in to see the link]