Imma also leave instructions here to ensure that you are notified so that you can add it to your information file.
To fix the "it can't be opened" stuff:
1: Open the terminal then type cd [space] then drag the app into the terminal and enter.
2: Right click and enter the package, navigate through Contents to the MacOS folder.
3: Remove the spaces from the name of the document within.
4: Type in the terminal chmod +x Contents/MacOS/WorldOfSisters
That should turn the document into an executable. After you complete these steps, you should be able to launch normally.