MUI Not Working

Hey! I am trying to craft a dating site built on interests instead of images. Idea springs from seeing how popular Twitter is for dating. Not the most original idea but just a fun project. I am having issues building it due to not being able to properly use icons from MUI? I just get a blank white page in my localhost when I try to import. Lines of code I am talking about: import InsertEmoticonIcon from "@mui/icons-material/InsertEmoticon"; under my div: <InsertEmoticonIcon />