An important first step in obtaining help is not to give your posts titles like “Urgent help needed!” Those who might help won’t have any idea about whether they might be able to help you. Your post was given a new subject: “Mac crashes when business is imported.”
Another step is to search the forum before posting. If you had, you would have discovered this is a known bug: Manager quits when importing backup on Mac. You would also have been able to read about a workaround solution pending bug resolution. Your post has been added to that topic.
This topic is being closed.