You will need to submit a ticket with the help desk and
1) ask them to check if the account have been comprimised. Link on top of page and in my signature.
2) ask them if they have backups to replace the hacked files with (unless you have backups, which is your responsibility to have).
3) then change passwords (cpanel,database,emails), and make sure every script etc you use are of the most recent and secure version.