Problem with app meeting

I’d installed Jitsi Meet in a new server with the latest version. Work fine when I connect through the browser, I can’t connect with the app to the same room or new rooms. When I start a call from the app appears immediately reconnecting…

Are you using a self-signed certificate?

No, a Sectigo RSA Domain Validation Secure Server CA certificate

It may be necessary to use the certificate chain, a certificate which contains the issuers’ certificates too…