[JavaScript Error: "HTTP request to https://doi.org/10.3760/cma.j.cn321828-20210507-00154 has timed out after 15000ms" {file: "chrome-extension://nmhdhpibnnopknkmonacoephklnflpho/zotero.js" line: 306}

[JavaScript Error: "Win error 5 during operation removeEmptyDir on file C:\Users\[…]\Zotero\storage\UQ9X59DB (Access is denied.

If you want to delete them, you can use this code in Tools → Developer → Run JavaScript:

Not easily, no. You can script it, but that requires javascript: https://www.zotero.org/support/dev/client_coding/javascript_api#batch_editing

[JavaScript Error: "/usr/lib/zotero/pdftotext returned exit status 127" {file: "chrome://zotero/content/xpcom/utilities_internal.js" line: 756}]

[JavaScript Error: "Error connecting to proxy -- proxied requests may not work"]

but must be run under Tools\Developer\Run Javascript, which makes it a bit impractical:

[JavaScript Error: "Download request 1/NGA5DK5Y failed"]

[JavaScript Error: "Promised response from onMessage listener went out of scope

I can reproduce this bug by adding many lines into the Extra field. [JavaScript Error: "this._id(...) is null" {file: "chrome://zotero/content/elements/relatedBox.js" line: 131}]

If I first select a child item and then its parent item, then press Delete, the deletion fails. If I select the parent item first and then the child item, then the deletion is successful. [JavaScript

[JavaScript Warning: "unreachable code after return statement" {file: "resource://zotero/loader.jsm -> resource://zotero/bluebird/util.js" line: 205 column: 4 source: " eval(obj);

I actually already searched for the "IJ9JPBJC" folder and deleted the file and folder manually (+ emptied the trash with rm -rf ~/.local/share/Trash/*). Because surprisingly there were no annotations

[JavaScript Error: "A listener indicated an asynchronous response by returning true, but the message channel closed before a response was received" {file: "chrome-extension://nmhdhpibnnopknkmonacoephk

[JavaScript Error: "Could not find a running Word instance. [getDocument:y:\adomas\zotero\word-for-windows-integration\build\zoterowinwordintegration\document.cpp:145]"]

[JavaScript Error: "Component returned failure code: 0x804b000a (NS_ERROR_MALFORMED_URI) [nsIIOService.newURI]" {file: "chrome://zotero/content/xpcom/storage/webdav.js" line: 205}]

To help us investigate, could you run the following using Tools -> Developer -> Run JavaScript:

[JavaScript Error: "database disk image is malformed" {file: "chrome://zotero/content/xpcom/db.js" line: 1189}]

[JavaScript Error: "Error: Cannot edit item in library #####" {file: "chrome://zotero/content/xpcom/data/dataObject.js" line: 997}]

* I opened the Bing Chat sidebar and told it I wanted to create a Zotero translator for Academia.edu, and could it produce the JavaScript for a translator that would work for the page source in the cu