I lost an audiotrack when using Logic but it is still playing through the stereo output. I still need to do some editing on the track, please help!

I took the vocal track of the song and did a preliminary EQ, compression and expander on the track. I am at the point of the process where I need to do further processing but the track has vanished. It is still playing through the master output of the song so I am baffled. I have checked the hidden tracks but it isn't there. I have no idea what is going on, I must have pressed a hotkey that hides it indefinitely or something? Any help would be appreciated!

Thanks