Access denied for user 'alstongo_6fc'@'localhost' to database 'alstongo_6fc'
The database server could be connected to (which means your username and password is okay) but the
alstongo_6fc database could not be selected.
alstongo_6fc have permission to use the
username_alstongo_6fc. Could that be the problem?
If you do not know how to set up a database you should contact your host. If all else fails you may find help at the WordPress support forums.