Not sure what is happening here.
const ObjectID = require('mongodb').ObjectID; is correct to me. I checked my project that is exactly what I have in my code and it also fails the test now.
add console.log(new ObjectID('test')) and check the console. If you see the same as below, I’d move on to the next challenge.
Note there are a few bugs in the Advanced Node & Express section you might run into; this one got me for a while so hopeful it helps in your near future: Advanced Node and Express - Set up the Environment SET UP