According to Downdetector, the former Twitter was having problems. Most of it was with the app.

X has stopped working in what appears to be a major outage. The site, formerly known as Twitter, refused to load in both its app and website form. Opening the website instead showed the company’s “X” ...

X, formerly Twitter, has gone down in what appears to be a major outage. The site and its app did not load at all, with visitors instead seeing a blank screen. Some ...