I messaged Vomitory on Facebook asking about why they canceled and they replied:
"Got cancelled because of visa problems. It sucks so much ass. We made everything we could to make it work, but we got fucked by bureaucracy.
I wonder if they plan on making up the tour?
7/30 - SubRosa
8/15 - Motley Crue
8/26 - Aerosmith
9/11-13 - ProgPower
9/21 - Eluvitie
10/5 - Cheap Trick?