Check that you are using the localhost as your DBHost in your wp-config.php file.
Then
goto mysql databases in your cpanel
drop the user (Don't delete the user of the database)
reassign the user to the database with all privileges.
It seems to be your forum account is not linked to any hosting account. Can you provide us the cpanel username to know what happened to your account.
By the way, When did you logged in to forums previously.
You can find account panel at http://x10hosting.com/control
For Cpanel,Click on "View Details" for your free hosting account then click on "Login to cpanel" button
package of services support zip?
Are you asking about zip compression and extraction support on filemanager. Yes, On filemanager you can zip and extract .zip, .gz, .bz2 formats in your filemanager.
The mysql host should be localhost
and
goto mysql databases
drop user(don't delete user or database)
re assign the user to database with all privileges
It seems to be your forum account not linked with hosting account. Can you provide us the cpanel username and server name to know what happened to your account?
When did you logged in to forums last time?