World server down (no login, vanilla classic)

Hello,

I have been unable to login to my vanilla warcraft account for over a week. The support team has directed me here and stated the following:
“I can see that my fellow Game Master already did some refreshments to your account, so, what is left now is that you issue a bug report, that’s why it is necessary to pass this through to our dev team through the appropriate channels so that they get the full context of the report, and get the chance to investigate it further.”
My Cata Classic account login works, as well as Retail. After selecting my toon, the attempt is made to login, but then gives “World server is down” message.