Bilbo

Hi, I have a Mobile In that I use with Mobile Pod on iPad 2. Everything has been fine for a long time until today I get a message that says: "Audio Routing has changed Please unplug and plugin your Line 6 device to reset audio routing". And I have done so repeatedly to no avail. When the message appears I get no sound, and after pushing "ok" a few times, the message goes away but still no sound. Can someone help me please? Thank you! Bilbo