There is a process in 4D named "Apple Events Manager" which can be seen in the process list when running 4D on both MacOS and Windows. The "Apple" in "Apple Event Manager" has no correlation to the platform operation system. It could be interpreted more generically as the system event manager.

The "Apple Events Manager" is related to the 'On System Event' database method.

If you see an error regarding the "Apple Events Manager" and are not sure where to look to start debugging; check your On System Event database method; if a blank method exists, delete it completely. If you do use the database event, make sure the code does not trigger any UI code (MESSAGE, for example).