i haven't checked this, because it's 5am here, but my initial thoughts are that quotes are unnecessary (the example works without quotes) but capital letters are - Karl doesn't match karl.
― koogs, Thursday, 12 January 2023 05:05 (three weeks ago) link
additionally, that looks like an old version of the script, the current one (2018) is here (i think the link on boards page is old and this thread is tl;dr)
the images suggest a different problem, perhaps (uri not listed?), but try this first
― koogs, Thursday, 12 January 2023 11:59 (three weeks ago) link