Nostalrius Begins - Quality wow vanilla realm (1.12)

My character Trollkonst can't talk in any chat and when I target him he's name is unknown, please help!

My knowledge in issues such as these are limited but here are some ideas that might fix the issue. If they don't work, then you'll need to wait for someone who has more experience, such as AverageJoe

• Logout and disable all active addons and log back in.
• Relog onto another character and then back to the one with the issues.
• Delete the respective chat-cache.txt of the character that's experiencing the issue. The file is normally located here C:\World of Warcraft Classic\WTF\Account\AccountName\Nostalrius Begins\CharactherName

P.S: On a very delayed thought, the server might have crashed and you didn't disconnect successfully. Leaving you unable to do anything beside running around.

took a break and came back and now it's working again, thanks for the help!