Why Zotero doesn't any longer attach open access papers?

ggarantziotis

Hey everybody! This is my first post. I 'm a researcher and after having to use Zotero for a long time I just opened it yesterday and performed the appropriate upgrade to Zotero 9. So I realized that while adding by identifier in the past would download, attach and open to read inside Zotero open access pdf papers, now it doesn' any longer makes the attachment. I 'm trying to use the "find full pdf" option but it cannot find open access paper. My only option is to download them manually and attach them myself. Does anyone knows why does that happens and how to fix it?
Thanks everyone anyway!