It's missing files/data folder like Mark said.
Viewing post in Match The Colors jam comments
I tried to run the game from the desktop and got the same error. Weird thing is that works fine if I run the exe from within the project folder. I'll do some research to see if I can figure that out. Thanks a lot for all the feedback!
PS: Apparently I also have to add the "Mono" folder from the project on the zip file. Already updated the game file.
PS: Thanks for all the help and sorry that you went through all of this to play my "not so good" game, but I'm sure trying to get better.