In most of the world, Facebook and Facebook-owned apps and in some places just some features have been down. In this outage of Facebook, many users are unable to use Facebook and many features but WhatsApp still working well.
According to Instagram Tweet;
We’re aware that some people are currently having trouble accessing Facebook’s family of apps, including Instagram. We’re working to get things back to normal as quickly as possible. #InstagramDown— Instagram (@instagram) November 28, 2019
The funniest thing to think about the outage is that Instagram officially uses Twitter to announce.
Technical Teams started working on this problem will be solved ASAP.