If you are watching via a web browser like Google Chrome or Safari it's common that the web browser automatically mutes videos. This is a great feature to ensure that you have full control over the volume.
Look down and you will see Unicorns.LIVE Creator Matty P showing where to find the volume control option. All you have to do is adjust that to a comfortable level.
If you are still having issues please contact us using the circle icon at the bottom right of your screen or send an email to Support@rebelliousunicorns.com.