Guest coudnt share screen

Hi,
Recently I install Jitsi on a Debian 10 Buster. I configure it to didn’t allow everybody to enter rooms by apply autentication=“internal_plain”.

Now, no one could share screen: moderator neither guest. Showing message “Guest coudnt share screen”

root@:~# dpkg -l | grep -i jitsi
ii jicofo 1.0-589-1 all JItsi Meet COnference FOcus
ii jitsi-meet 2.0.4627-1 all WebRTC JavaScript video conferences
ii jitsi-meet-prosody 1.0.4127-1 all Prosody configuration for Jitsi Meet
ii jitsi-meet-turnserver 1.0.4127-1 all Configures coturn to be used with Jitsi Meet
ii jitsi-meet-web 1.0.4127-1 all WebRTC JavaScript video conferences
ii jitsi-meet-web-config 1.0.4127-1 all Configuration for web serving of Jitsi Meet
ii jitsi-videobridge2 2.1-202-g5f9377b9-1 all WebRTC compatible Selective Forwarding Unit (SFU)

Could you help me? Thank you