I’m able to fetch data from the movie data base , from front end getting error accessing from backend [closed]

I’am unable to connect to the movie database from backend even though my api url and the api-key mentioned as given in TMDB api reference site as shown in image below

I’m able to get data from TMDB in front end though

TMDB api reference page

Can anyone explain why I’m unable to connect to TMDB at backend but can do in front end.