Technical HELP PLZ! can't launch 3.3.5!

[l33t]

Hi,
Im running OS X El capitan 10.11.1
2,3GHz intel Core i7
8gb 1600 MHz DDR3
Nvidia GeForce GT 650M 1024MB

But i can't open the .app to launch wow. any suggestions how to fix??
Trying to get the 3.3.5.
the error says: The application "World of Warcraft" can´t be opened.

[l33t]

Found the answer!! works fine now!

a). Some apps may download fine, but won't open when double-clicked. The problem is that they don't give you permission to execute the file. You can fix this by doing the following:
1. Right/control click the patch file and select "Show package contents"
1a. If you see the real patch file now, run that. Otherwise..
2. Go to /contents/MacOS/ and you should see a file called "installer"
3. Open Terminal (/applications/utilities)
4. In terminal, type "chmod 777 " but do not enter (you must be on an administrator's account, also note space after the 777)
5. Drag the "installer" file to terminal. The path of the file should be entered into terminal.
6. Press enter in terminal
7. Open the original patch file