Something is going wrong over at Blizzard.

Players are unable to log into the company’s online games, which includes hits like Overwatch and Hearthstone. This is especially bad timing for the digital card game leader, as its latest expansion, Journey to Un’Goro, launched just last week. Blizzard has acknowledged the issues on Twitter.

Blizzard has suffered from denial of service attacks (DDoS) in the past, but it does not state if that is the issue here. We have reached out to Blizzard and will update this story if the comment on the situation.

Updated at 4:15 p.m. PST: Blizzard says that its login issues are over.