Indefinite loading of repel

Tell us what’s happening:
in

APIs and Microservices Projects - Exercise Tracker

project when i press repel link it is saying ,upgrading node.js in defenitely

Your code so far

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.111 Safari/537.36.

Challenge: Exercise Tracker

Link to the challenge:

Hello there,

Would you mind providing more information? Preferably a link to your project.

The more information you give us, the more likely we will be able to help.

This also happens with the Quality Assurance track here.
It has been happening to me for the past few days.