Zotero PDF Opener not coming up

I have worked through linking Zotero to Logseq but can’t get the open button to show, enabling me to read the PDF in Logseq. I believe I have the Zotero data directory correct but need to be sure if someone can post where they got the information for theirs. I am using a Mac and Logsec in a browser.
Thanks in advance
Kassie