Ur22 volume issues

Hello all…
Last night i was listening to music through my Ur22 through headphones. All was well. This morning my volume through headphones and external speakers was diminished by half. I reconfigured all settings through Utilities-midi settings (Mac) etc, unplugged the usb, disconnected and reconnected the interface and external speakers, rebooted the computer etc. All software is up to date, everything is properly connected and configured. Its not the speakers as they still play, and the volume is normal through the internal speakers. Also my guitar through garageband and interface will not allow me to hear the tracks. The guitar will only play clean. Any effects through garageband will not play through the interface. The playback of the actual track will only play through the internal speakers, not through the interface or external speakers. ANY help will be appreciated.Thanks