I play on mac, and I have a shortcut to the game in my toolbar. However, it doesn't work; there is a question mark that appears and it doesn't launch. It is not that bad, but now I have to muve my cursor further to play my game...

wow, talk about a first-world problem...

but seriously how do I fix this...

You can try using the methods outlined here: https://itch.io/t/46387/how-to-download-and-instal... - While some info is PC specific, the itch.io client instructions should be generalized enough to follow. Using their download manager to install the game can sort out all sorts of issues. If you're already using the itch client, I'm afraid I don't know what to tell you. My test PCs all run windows, so as such I have zero Mac experience, but Doborog develops on a Mac, so maybe he can chime in if he knows. :-)

-Cheers

Interesting! I never use shortcuts on my Mac, so don't know off the top of my head.
We'll add it to the list of things to look into. :)