Chopin has the several problems. Please, read te linck bellow http://status.x10hosting.com
PS: This is a forum for spanish people. Please, write in spanish
Your server is chopin and probably your account is one of those that are not successfully transferred to the new Server in recent Migrations. see http://status.x10hosting.com for more info.
Wait for the transfer of accounts to be done. Everything will work after that.