GStreamer error

[gerliczky]

Once I start to play an online stream, I get the following error:

WARNING Could not find a MPEG-1 Layer 3 (MP3) decoder to handle media.
WARNING GStreamer warning: gst-stream-error-quark: No decoder available for type 'audio/mpeg, mpegversion=(int)1, mpegaudioversion=(int)1, layer=(int)3, rate=(int)44100, channels=(int)2, parsed=(boolean)true'. (6)
ERROR GStreamer error: gst-core-error-quark: Your GStreamer installation is missing a plug-in. (12)

Home Assistant 2023.6.0
Supervisor 2023.06.1
Frontend 20230607.0 - latest

Mopidy
Current version: 0.2.7