.env challenge please help

Tell us what’s happening:
kindly assist me on this challenge. it is not passing

Your code so far*

app.get("/json", (req, res)=>{
       if(process.env.MESSSAGE_STYLE ==="uppercase"){
        return  res.json({
        message: "Hello json".toUpperCase()
        });
       
         
       }else{
         return res.json({
           message:"Hello json"
         })
       } 
        })     

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:71.0) Gecko/20100101 Firefox/71.0.

Challenge: undefined

Link to the challenge:
https://www.freecodecamp.org/learn/apis-and-microservices/basic-node-and-express/use-the-.env-file

can you send your glitch url so that i can check better?

here is the url. thank u for your prompt response.