Error message after initial loading...

[SirClickALot]

I have set this up in Google Sheets but when I send it a URL which I construct using concatenate()...

https://www.googleapis.com/books/v1/volumes?q=isbn:9780099461890&fields=items(volumeInfo/title,volumeInfo/authors)

I get the message...

Error
Exception: Request failed for https://www.googleapis.com returned code 403. Truncated server response: { "error": { "code": 403, "message": "Cannot determine user location for geographically restricted operation.", "errors": [ { ... (use muteHttpExceptions option to examine full response) (line 220)

My (publicly shared sheet is here...

https://docs.google.com/spreadsheets/d/11SX-PGUughpUQTW9GSCH27WjPSrC2zGKkUdc6bCTAWE/edit?usp=sharing