try going to the mac terminal and follow this, this worked for me (it's the same steps to open the touchstarved game too):
Type the following (this is a lowercase L): ls
A list of folders should appear and Downloads should be one of them.
Next, type: cd Downloads
7. Terminal should now be directed to the folder that game is in
IF YOU ARE USING INTEL, type: chmod -R 777 TheFalseSun
IF YOU ARE USING APPLE SILICON, type this instead: chmod -R 777 TheFalseSun