Can I uninstall and reinstall Outlook 2001 for Mac?

I recently started having issues with Outlook while trying to clean out my 'Deleted Items' folder. Outlook kept giving me the error message: "Microsoft Outlook must be closed because an error occurred. Any unsaved work may be lost." Now all my folders are empty, all my emails are gone and I get the same error message when I hit 'Send & Receive.' I have a Time Machine backup and tried restoring it that way, from the last backup before the issue began, but the folders still come up empty and I get the error message. I was hoping I could just simply restore Outlook from Time Machine, should I reinstall it from Microsoft and then try going into Time Machine and restoring?