So i’m with a problem that when I try to push the title from the Jikan API, he gives me an error and i don’t know why

So I have this web based application I’m trying to make and it needs to be able to communicate with an API I’ve been provided. I’ve made GET requests that work just fine, but when making PATCH requests, they keep returning status code 400 bad request and I can’t seem to find the error I’ve made. I’m using Node.js and fetch to make the requests.