Fail to deploy react app on netlify

I am trying to deploy this site but it keeps failing, why?

It runs perfectly locally, but on netlify it doesnt. I got those error message below

Hi @oshane,

Did you try to do what the error suggests? Maybe try changing mission_id to missionId?

really want to say a BIG THANK YOU to you!
the warning and your advices really help me a lot!