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Facebook, Instagram, and WhatsApp are all down for billions of frustrated Internet users.

Facebook, the world’s most popular social network, went down at 11:44 a.m. EST on October 4.

Internet status websites such as DownForEveryoneOrJustMe and DownDetector are all reporting that Facebook is down.

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Facebook and Instagram users rushed to Twitter.com to find out what happened to their favorite social media sites.

Instagram shows a “5xx server error,” indicating an issue with Facebook’s servers, according to Tech Crunch.

Instagram and WhatsApp are owned by Facebook.

“It appears that the outage is caused by a DNS (domain name server) fail — this is the naming structure that forms the web’s infrastructure. So, if you try to navigate to facebook.com right now, the internet won’t know where to find facebook.com.”

The network failure comes days after a Facebook whistleblower revealed on 60 Minutes that Facebook made misinformation more easily accessible to maximize profits.

Facebook’s total monthly users stands at more than 3 billion. At least 65% of global users log in to Facebook every day.