For anyone still stuck on this, ditch uTikDownloader (or similar applications) for this game specifically. All others have worked fine, but not BoTW, I used a download from TPB and has worked perfect without issues :)
Sounds really stupid, I couldn't see how to PM, but I'm nearly finished downloading it from TPB :)
auto
Just found out as a Newbie you need to have sent a certain number of messages first before being able to PM..Also have you acquired the game and successfully installed it yet? :)