You've reached a NewLeaf instance.
NewLeaf is a YouTube data extractor, compatible with Invidious.
Please do not scrape from public instances!
Public instances are run by volunteers who really do not need to deal with your crap.
You can run your own copy of NewLeaf very easily. It'll benefit us by not flooding us with requests. It'll also benefit you: your application will speed up since it won't be drowned out by all the other people who ignored this warning and started spamming us anyway.
For more information, please get in touch. I'm happy to help you if you need to learn how to not abuse other people's work.