HD profile Downloader not working, it lead to a blank page

[Poukpalaova]

Trying your apps, work almost as stated but for the instagram profile downloader
I copyed pasted the link from insta (example: https://www.instagram.com/mikaylademaiter/), then clicked the button called SEARCH, we see a cute animated icon showing that it's doing something and after like 5 seconds, it lead to that blank page:
https://yasin-ai.github.io/igvio/#/igvio/profileHd

I read in your read me that you ask that we use our API key. Is there something to do with that? Where we get that key, and where we put it if it's needed.

Thanks