Mongoose chaining doubt

Tell us what’s happening:
I have tried with so many method still this last challenge is not working for some reason .I got so demotivated .please help

Your project link(s)

solution: https://replit.com/@vijaybharathi/boilerplate-mongomongoose

Your browser information:

User Agent is: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.71 Safari/537.36

Challenge: Chain Search Query Helpers to Narrow Search Results

Link to the challenge: