Hi,
It looks like you have hit your 512MB disk space limit. A problem with our "Basic" theme means that a blank page or 500 error is shown when your account has run out of space. To help with this, I have switched your account over to the standard cPanel x3 theme, which should load properly for you. Please either clear some space, or wait until your account is eligible for an upgrade to unmetered disk space. You can request for unmetered disk space once your account has been active for 7 days and you have a working website that follows the Terms of Service.
You can switch back to the x10Hosting Basic theme by clicking the "Switch Theme" tab in the top-right, but please only do so once you have some free space.
Thank you,