I can't creat any New Game and the error 315000

I can login my account.
I can’t creat any New Game and the error 315000.
How to fix it??
I have already change my password and log out then login another sever but it still be error.

Have you been silenced/muted in a Blizzard game ?
If so, you should probably read the following topic to understand what you’re in for:

It’s a pretty long topic… the last update by Blizzard is here: Start Game Greyed Out - Unable to join game, only available to party leader - #295 by Drakuloth, some 15 days ago.

If you haven’t been muted, I would contact Blizzard Support directly… and see what they can tell you or do for you (click the Contact Us button):
https://us.battle.net/support/en/help/product/diablo3/273/279/solution

Also this topic belongs in Tech support, not bug report as error codes are not bugs.

Thank you all.
Now my account can play normaly.
But I still want to know what happened?