Try using Cpanel username.Refer this http://x10hosting.com/forums/free-hosting/114005-free-hosting-faq-s-read-before-posting-new-thread-2.html#post649312
Your account is not currently suspended. A suspended account is will not able to login to Cpanel.SO backup is not possible from suspended account.I recommend that you take backup of your files regularly so loss of files can be avoided.