Hummingbird Settings Breaking Site.

Hi, I've been having a hard time optimizing my website with the minification. I'm not sure what's messing around with the loading.

Is it the combination of files? Minification?
Position Change (header/footer)?
Is it the fact that "GZIP" feature is enabled?
Probably conflicting with W3TC (W3 Total Cache Plugin)?

I'd love to get someone have a look at my settings and see if I did something wrong.

Kind Regards,
Sof.