No audio xbmc kodi v17.1-krypton

Suddenly having audio problems on kodi krypton v17.1 XBMC. Was working last night but when I turned it on this am no sound on any apps. Have checked F8 and the + sign and still no volume. Volume works everywhere except on kodi. I do not have any gaming device or joystick enabled and have gone through all the system audio settings suggested. I also unplugged the box and restarted…still no volume. Help please!