Hello, I have unlimited Zotero storage and sync from the local computer apparently without any error. But once I go to the web library the attachment won't open. In the attachment panel, the pdf is "greyed".

This is the debug ID after reset file sync history, sync, and successful opening of the file locally:
D1976927343

This is the URL from the web library where I am not able to access the file:
https://www.zotero.org/maurone/library


Thanks a lot in advance for any help
Mauro