[JavaScript Error: "Error: 400: Google Docs request failed.

[JavaScript Error: "An error occurred during a connection to api.zotero.org.

[JavaScript Error: "The operation couldn't be completed. (OSStatus error -1728.) @[initField:field.m:70]"]

JavaScript Error: "uncaught exception: unopkg at /Applications/LibreOffice.app/Contents/MacOS/unopkg failed to install"]

[JavaScript Error: "Win error 5 during operation open on file C:\Users\[…]\Documents\[…]\Zotero\storage\3KR4THEN\.zotero-pdf-state (Access is denied.

https://i.upcindex.com/upc-9780553213140-barcode.png almost instantly but changing all my records to the https://i.upcindex.com format would make the GET https JavaScript call more efficient.

javascript:var d=document,s=d.createElement('script');s.src='https://www.zotero.org/bookmarklet/loader.js';(d.body?d.body:d.documentElement).appendChild(s);void(0);

[JavaScript Error: "obj.toJSON is not a function" {file: "chrome://zotero/content/xpcom/sync/syncEngine.js" line: 1543}]

[[JavaScript Error: "No tab with id: 749."]

It's a bit of a special case; anything that could be a valid javascript variable name doesn't need quotes, but the only non-alphanum characters that qualify are _ and $

You need to say what the actual problem is that you're experiencing. [JavaScript Error: "Invalid or missing translator metadata JSON object in IMDb.js" {file: "chrome://zotero/content/xpcom/translatio

[JavaScript Error: "Parent item 1/4Q5DY97J not found" {file: "chrome://zotero/content/xpcom/data/item.js" line: 1537}]

There's some stuff on the JavaScript API page, but the source code — or the source code of other plugins, though we obviously can't vouch for that — is indeed your best bet at the moment. We're going

[JavaScript Error: "API key not set"]

[JavaScript Error: "www.worldcat.org:443 uses an invalid security certificate.

[JavaScript Error: "Unix error 13 during operation remove on file /Users/[…]/Zotero/translators/Airiti.js (Permission denied)" {file: "(unknown module)" line: 0}]

[JavaScript Error: "No tab with id: 64."]

If you go to Tools → Developer → Run JavaScript and run the following code, what's the result?

[JavaScript Error: "TypeError: Cannot read properties of undefined (reading '6')

[JavaScript Error: "The RPC server is unavailable.