The character failed

The character fell under the texture, restarting constantly disconnects from the game WOW51900319

I would try using the characters stuck service on the website instead. To see if your character can be moved somewhere safe for you.

https://eu.battle.net/support/en/help/product/wow/197/834/solution

If you’ve already used this service you will need to raise a ticket instead and a GM will move your character for you.

It might be worth reading this blue response

Continuing the discussion from How do I get my character back?: