can't save pdf into Zotero
I open a paper in pubmed or google scholar, just like this:https://www.ncbi.nlm.nih.gov/pubmed/31089679. I press the button in the upper right corner 'zotero', but it only saves the html into the zotero app, it can't save the pdf and will show '×PubMed Central Full Text PDF’(There is a big red cross in front of this sentence). I am very confused,I uninstalled the app and reinstall it, but it still doesn't work.
Does this still happen if you disable ZotFile?