https://techcrunch.com/2018/11/21/facebook-is-still-facing-intermittent-outages-for-advertisers-ahead-of-black-friday-and-cyber-monday/

One day after experiencing a massive outage across its ad network, Facebook, one of the most important online advertising platforms, is still seeing “intermittent” issues for its ad products at one of the most critical times of the year for advertisers.

According to a spokesperson for the company, while most systems are restored there are still intermittent issues that could affect advertisers.