What does the error message "Error! Cannot write to Info.plist" means?
This message appears when you have not placed the file in the application folder. The software cannot be run without being installed as an application which you do by selecting the SignCut Pro 2 software together with SignCut Draw and then drag and drop it in the application folder (open in a separate finder window).
However, please keep in mind that we currently do not offer MT4 on MAC with OS 10.14 or later.
You may also try to use PlayOn Mac program and download MT4 through it.