Isnt working

This app worked great....until today. I open the app an plug all my stuff in and absoluty no sound. I tried diffrent headphones. No sound. I tried diffrent cables. No sound. Checked my guitar. No sound. Unplugged and plugged it back in. No sound. I checked every thing on the app and still no sound. Please fix this

zero8877 about AmpliTube LE, v2.0.2