The the slide squeaking sound is kinda necessary for an acoustic guitar to sound 'real'. Unfortunately it's just a little too loud and in the foreground of your mix. That can be fixed by trying to make it quieter whilst playing or going through and reducing the volume at the squeak points (can be painstaking)

Fabulous song by the way. What kind of mic are you using? The vocals could do with like a tiny bit of reverb maybe?