Cannot sync

Report ID 1034562907

I have an "!" in a red circle next to the sync icon. I have no idea what cause this. Please help!
  • You're still running a very old version of Zotero, 3.0.8.1. To start, upgrade to the latest version of Zotero 4.0. If you're still having trouble with that, provide another Report ID.
  • (upgrade by re-installing from zotero.org/download )
Sign In or Register to comment.