Facing one serious issue

Please check below error message, Actually I have added UnMuteButton in my project but it’s giving me below error, I don’t know why please give me some suggestions

[JitsiMeetJS.js] <Object.getGlobalOnErrorHandler>: UnhandledError: null Script: null Line: null Column: null StackTrace: TypeError: t.unMuteParticipant is not a function