Mixtour reloop faders and gains are non responsive and also bleeding all over please help !!!!

My mixtour is almost 2 years old and weeks ago it all of a sudden started acting very strange. Fader won’t cut or bring up sound , my gains are triggering the sound to cut out and the load buttons will not load either. Is there a update I should get or something I’m very concerned. I use a MacBook Air if that helps I’m desperate to fix this thing it’s like my everything