Twitch chat embed won't work

Hi, i’ve been building a website that includes a livestream embed and a chat embed, the livestream embed is working but the chat embed gives this error

I have set the parent domain property to the iframe source

<iframe src="" frameborder="0" width="100%" height="100%"></iframe>

but it won’t work

My other post got closed because i forgot to link the page

The page is

Your original post was moved to

and has now been answered there