[JavaScript Error: "Could not remove the file at C:\Users\[…]\AppData\Local\Temp\Zotero\elsevier-harvard.csl"]

[JavaScript Error: "Unexpected href '/homes/zotero/%23recycle/'" {file: "chrome://zotero/content/xpcom/storage/webdav.js" line: 1067}]

[JavaScript Error: "S3 returned 0 (3/8JXUTLKA) -- retrying upload"]

* Inject custom JavaScript into the saved page to manually patch the scroll behavior.

[JavaScript Error: "*** -[__NSDictionaryM setObject:forKey:]: object cannot be nil (key: /Applications/Office Ähnliche/Microsoft Word.app/) @[getDocument:application.m:211]" {file: "resource://zoter

I tried doing the javascript command in zotero 6, but I get the error the AbortSignal is not a function. It seems it's too old a version of javascript in zotero 6 to support that.

If you go to Tools → Developer → Run JavaScript, substitute your hostname and port in the following, and run it, what's the result?

[JavaScript Error: "HTTP GET https://api.zotero.org/users/4289155/items/FHLT3NDL/file failed with status code 403"]

[JavaScript Error: "XML Parsing Error:

[JavaScript Error: "Request timed out after 30000 ms"]

[JavaScript Error: "uncaught exception: undefined"]

[JavaScript Error: "items is undefined

[JavaScript Error: "S3 returned 0 (1/QBU49JT2) -- retrying upload"]

[JavaScript Error: "S3 returned 0 for 1/TS5IQWEN -- retrying download"]

[JavaScript Error: "S3 returned 0 (1/SYWNJTQS) -- retrying upload"]

[JavaScript Error: "S3 returned 0 for 2/FWMJF95F -- retrying download"]

[JavaScript Error: "uncaught exception: undefined"]

Report ID gave a clue : a javascript problem with the extension ZoteroPreview. Deactivating ZoteroPreview and restart Zotero solved the problem.

The error report states: [JavaScript Error: "HTTP DELETE https://api.zotero.org/users/9977888/items?itemKey=2BBM8UVK,2NKPKW5J,4US5URMX,7CI458TN,9K529SJR,DY274J55,GYS3XG3J,NR2GXT5W,R3CEBPWZ,RA6FQXED,V9

[JavaScript Error: "Component returned failure code: 0x80520008 (NS_ERROR_FILE_ALREADY_EXISTS) [nsIFile.create]" {file: "chrome://zotero/content/xpcom/file.js" line: 1053}]