Crash on Launch?

So today I upgraded my computer from OS X 10.9.5 to 10.11.5, the very latest version. Immediately went to to install the latest air version (had an older version). Downloaded the installer from warcraftlog, it also said it would install a “later” version. After that, the uploader did load and run. I quit the app to go update the alias I had been using to launch it… that done I launched it. Boom, crash.

After a LONG time successfully using the uploader, for some reason it stopped working a month or three ago. Knew I was in for a big OS upgrade, so when that finally happened, I tried again, pretty much from scratch (well, upgraded both parts from their creators). What can I do now?