Colloquially, it could also mean "Don't get annoyed, buddy!" or just "lighten up!" But, what do people in Germany think?
It's also the name of a board game in Germany, similar to Parcheesi, so it could be a marketing piece for that.
The fact that it uses an "Æ" instead of "Ä" could mean the intended audience is Austria or Switzerland--maybe.

Sometimes those countries write the long form of "ä" and "ü" as "ae" and "ue".