You were suspended as there is no licence number in your vBulletin install files. That is considered nulled by vBulletin, which therefore violates our Terms of Service to which you agreed upon signup. As per section 8 of those terms, you can have no further access to your account.
Terms of Service said:
8. Suspensions
If an account is suspended for a breach of the terms outlined above the account holder will immediately forfeit all rights to the account in question including access to any and all files and\or databases located within the account. x10Hosting is under no obligation to provide backups in full or partial to an account holder that has been suspended.