"Planner 5D.app is damaged and can’t be opened"
In order to solve the issue, please clean the Container:
- on Your MAC menu bar, click on "Go";
- a list will appear, press "Alt/Option" on Your keyboard;
- keep it pressed, till "Libraries" will also appear on the mentioned drop down list;
- click on that icon;
- catalog folder will open with a huge list, scroll down till You reach:
com.planner5D.Planner- 5D. macOS
- delete it;
- launch the app again.