Error report 510373125
Unable to sync to online library from local Zotero library. File synch is on; pdfs are visible on local library, but only some appear online. I recently changed my primary email address, could that have led to the issue?
Zotero could not make a secure connection.zoterofilestorage.s3.us-east-1.amazonaws.com uses an invalid security certificate.
The certificate is not trusted because the issuer certificate is unknown.
The server might not be sending the appropriate intermediate certificates.
An additional root certificate may need to be imported.
Error code: SEC_ERROR_UNKNOWN_ISSUER
For this file sync error, it means something on your computer or network is intercepting your secure network connections. See SSL Certificate Error.