If you receive this error message, it means World of Warcraft lost its connection to the server.
General information on setting up, maintaining, or canceling a subscription to World of Warcraft.
Slow and choppy gameplay in World of Warcraft
You can use the undelete feature to restore a deleted World of Warcraft® character once every 15 days.
Troubleshooting steps for World of Warcraft crashing issues
For issues purchasing WoW Token with gold.
What to do if you do not have a Battle.net account but are receiving emails from Blizzard Entertainment
Basic troubleshooting for WoW crashing and freezing issues
Purchased a PCT but has not gone through