Fetch Backend Engineer interview questions

I initially sent in my resume for review. A few days letter I received an invite for an online take-home assessment. Although a big upfront commitment, I completed the project. It took about 3 hours, and they expected production level ready code. A few days later I get invited for an in-person interview. I unfortunately did not pass this interview, so I don't know what's next. During the interview they asked me production questions about the project and asked me to modify it. Very demanding / high knowledge level expected for an entry level position.