.bib file stopped refreshing from Zotero

I have linked my Zotero with my Overleaf document and have had no problems to date. I used to be able to refresh the imported .bib file when I would update my Zotero with new references, however this has stopped working and is no longer allowing me to refresh it.

I haven’t changed anything to do with how this was set up so I was wondering if other people are having this issue or if anyone has any suggestions.