[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule(): ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule(): ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule(): ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule(): ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule(): ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule(): ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule(): ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule(): ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule(): ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule(): ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule(): ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule(): ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule(): ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule(): ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule(): ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
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: 0}]
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: 416}]
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: 0}]
appName => Zotero, version => 9.0.4 (x64), os => Linux 7.0.11-1-cachyos #1 SMP PREEMPT_DYNAMIC Tue, 02 Jun 2026 18:38:46 +0000, locale => en-GB, extensions => Translate for Zotero (2.4.4, extension), Better BibTeX for Zotero (9.0.27, extension), Better Notes for Zotero (3.1.0, extension)
But the main error in there is a sync error and it looks like you're trying to sync an individual file >4GB. You should be getting a better error message though.
[JavaScript Error: "NS_ERROR_ILLEGAL_VALUE: Component returned failure code: 0x80070057 (NS_ERROR_ILLEGAL_VALUE) [nsICommandLine.handleFlagWithParam]" {file: "resource:///modules/BrowserContentHandler.sys.mjs" line: 479}]
bch_handle@resource:///modules/BrowserContentHandler.sys.mjs:479:34
[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule():
ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule():
ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule():
ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule():
ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule():
ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule():
ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule():
ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
[JavaScript Error: "uncaught exception: undefined"]
[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule():
ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule():
ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule():
ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule():
ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule():
ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule():
ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule():
ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
[JavaScript Error: "ChromeUtils.import() has been removed. Use importESModule():
ChromeUtils.importESModule("resource://gre/modules/Console.sys.mjs");"]
[JavaScript Error: "HTTP POST https://api.zotero.org/users/482119/items/MQ5MGM9H/file failed with status code 400:
Files above 4 GB are not currently supported"]
[JavaScript Error: "Unexpected status code 400 in Zotero.Sync.Storage.ZFS._getFileUploadParameters() (1/MQ5MGM9H)"]
[JavaScript Error: "Upload request 1/MQ5MGM9H failed"]
[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: 0}]
[JavaScript Error: "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: 416}]
[JavaScript Error: "HTTP POST https://api.zotero.org/users/482119/items/MQ5MGM9H/file failed with status code 400:
Files above 4 GB are not currently supported"]
[JavaScript Error: "Unexpected status code 400 in Zotero.Sync.Storage.ZFS._getFileUploadParameters() (1/MQ5MGM9H)"]
[JavaScript Error: "Upload request 1/MQ5MGM9H failed"]
[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: 0}]
appName => Zotero, version => 9.0.4 (x64), os => Linux 7.0.11-1-cachyos #1 SMP PREEMPT_DYNAMIC Tue, 02 Jun 2026 18:38:46 +0000, locale => en-GB, extensions => Translate for Zotero (2.4.4, extension), Better BibTeX for Zotero (9.0.27, extension), Better Notes for Zotero (3.1.0, extension)