My Zotero plugin cannot get the PDF of the document
                    Why can't my Zotero plugin perform the operation named "Preprint PDF" after fetching documents? And why does my plugin display a red cross in front of "Preprint PDF"?
https://s3.amazonaws.com/zotero.org/images/forums/u18323156/e199d20n1ywgj8d4f8q2.png
                
                            https://s3.amazonaws.com/zotero.org/images/forums/u18323156/e199d20n1ywgj8d4f8q2.png
 Upgrade Storage
 Upgrade Storage
Can you provide a Debug ID from the Zotero Connector for reloading the page and trying to save?