Application not starting on running npm run dev

[Madhuraank]

Course : Nodejs : Advanced concepts on udemy
Lecture 41

Getting this error
The URL mongodb://readonly:0Wc2It8kdXQ8INbh@ac-zxjyu5u-shard-00-00.ffbere1.mongodb.net:27017,ac-zxjyu5u-shard-00-01.ffbere1.mongodb.net:27017,ac-zxjyu5u-shard-00-02.ffbere1.mongodb.net:27017/advnode?authSource=admin&replicaSet=atlas-nza14v-shard-0&retryWrites=true&w=majority&ssl=true is invalid.

Pls help here