Just phoned the hosts up
and apparently the hard drive on the server has packed up!
So ive sent them an email to get the account changed to another server!
Luckily at the weekend i was looking into how you transfer a forum to another server, and one of the things i did was get all the data and setup sent to my pc(never backed it up before)
So if all the data is there i should be ok once the account is set up