I am consistently having issues with syncing. It used to be it would only sync right after restarting my computer, but now it won't sync at all. Recently updated to 64bit but it was happening with 32bit version as well. Using a Thinkpad with Windows 11.
Report ID: 1830597083

Will very much appreciate any advice. Thanks!

When I report error it gives the below for (I think) every file I've added:

"[JavaScript Error: "A file sync error occurred. Please try syncing again.

If you receive this message repeatedly, restart Zotero and/or your computer and try again. If you continue to receive the message, submit an error report and post the Report ID to a new thread in the Zotero Forums." {file: "chrome://zotero/content/xpcom/storage/zfs.js" line: 411}]

[JavaScript Error: "HTTP POST https://api.zotero.org/users/13425618/items/D98UKEHP/file failed with status code 428:

If-Match/If-None-Match header not provided"]

[JavaScript Error: "Unexpected status code 428 in Zotero.Sync.Storage.ZFS._getFileUploadParameters() (1/D98UKEHP)"]

[JavaScript Error: "Upload request 1/D98UKEHP failed"]

appName => Zotero, version => 7.0.15 (x64), os => Windows 11 26100, locale => en-US, extensions => "