The official statement regarding the cancelation has been released.
"We envisaged Gaming Paradise 2015 as a great, first-of-a-kind event that would combine e-sports and tourism. We invested a lot of effort into it, but as with every pioneer project, we met a lot of problems along the way, some of which came up unexpectedly right before the event.
We tried hard to work things out, but after a great deal of consideration, we realised we had to cancel the Dota 2 tournament to ensure that we can go through with the rest of the event. We apologise to all the teams and their fans who made plans to come to the festival. All tickets for 9, 10, 11 and 12 September will naturally be refunded as soon as possible."