Giving Premagic folder write access to Premagic app

You need to give write permission to the Premagic working folder so that the app can store its temporary files there. If your having issues with the app after changing the folder location for premagic, then it might be because for its folder permissions.

Right click on the Premagic folder and select Get info

This is how the Get Info menu looks like

Expand the Sharing & Permissions menu below

Select the appropriate user or select "everyone" and click on "Read only" item

Change the permission to Read & Write, so that Premagic can write to that folder.