Use with M-Audio Ozone / Not recognizing guitar anymore

Hi all! First post here...

I am currently using the M-Audio Ozone with Garageband. It works wonderfully when im using the ozone keyboard with the garageband sounds.

For some reason though, it will not recognize my guitar when I plug it into the "instrument line ch 2" jack.

Now here is the thing, when I first got the ozone a few weeks back, the guitar worked fine when plugged in and working with garageband. I got it all set up in Garageband in the preferences and recording went smoothly.

Now nothing at all 😟

Any help would be much appreciated!

Thanks guys!