Not able to fetch the data from api endpoint

I’m not able to get data from the api end point for the assignment 5 (designing a quiz app)
this is the result i get :
Access to fetch at ‘’ from origin ‘’ has been blocked by CORS policy: No ‘Access-Control-Allow-Origin’ header is present on the requested resource. If an opaque response serves your needs, set the request’s mode to ‘no-cors’ to fetch the resource with CORS disabled.

and this is my code:
async function quexdata(){

const res = await fetch("")

const {results} = await res.json()