I've never used it. The messages tell me that you have nothing installed capable of transcoding Opus and I don't need to the details of the codec module to determine that.
If it is a non-proprietary module, make sure you enable it in menuselect when you build Asterisk, and in modules.conf when you load Asterisk.
If it is proprietary see its documentation.
In either case, it may have configuration parameters that may need adjusting, or your client may be requesting options that the Asterisk module doesn't support.