When I was using Microsoft Word, I couldn't find the add - ins. Then the Word document gave me the following two error messages: "The server application, source file, or item cannot be found. Make sure the application is properly installed, and is not deleted, moved, renamed, or blocked by policy" and "The program used to create this object is Package. This program is not installed on your computer or is not responding. To edit this object, install Package or make sure any dialog boxes in Package are closed." I've reinstalled Word and Zotero, but it didn't work.