syntax error on line one when adding a custom font?

Site URL: https://www.thebloodyfoody.com/

Hello, I am trying to add a font and not sure how to fix this syntax error first line?

I followed the steps laid out by this article to see if it works anyway and it doesn't --  https://www.kayleighnoele.com/blog/how-to-upload-a-custom-font-to-squarespace.

I want to change the font for paragraphs, so I was putting, p2 in lower case? 

I guess that it correct

Totally new to this so would appreciate some help 😊

You need to use this code

@font-face {
	font-family: tuanphan;
	src: url(paste link in screenshot here);
}
p {
	font-family: tuanphan;
}