Google License Key ruins display

I was preparing to upload an app to Google Play. I generated my license key on Google Play and when I incorporated it in the config.lua file it destroyed my display. If I used other license keys from previous apps I’ve uploaded then no problem. So what was different about this key? After looking carefully, I noticed this key contained two consecutive pluses like this “++” whereas my other keys didn’t. See the code below. If I use the key without the consecutive pluses the display is fine. Otherwise, if I use the key with the consecutive pluses it totally ruins the display. Why is this???

I have also attached two screenshots showing the correct display and one showing what the two consecutive pluses do to the display.

--calculate the aspect ratio of the device: local aspectRatio = display.pixelHeight / display.pixelWidth application = { license = { google = { -- key = "MyKey", --key = "MyKey++", }, }, content = { width = 320, height = 480, scale = "zoomStretch", imageSuffix = { ["@1-5"] = 1.5, -- for Droid, Nexus One, etc. ["@2x"] = 2, -- for iPhone, iPod touch, iPad1, and iPad2 ["@3x"] = 3, -- for various mid-size Android tablets ["@4x"] = 4, -- for iPad 3 } } }