Soundcard problem

I accidently unplugged my soundcard (M Audio Fast Track Ultra) whilst Cubase (artist 11 ) was still running and now it doesn’t show up on the Studio set up control panel.
I get the message,
’ Impossible to record Audio because the Audio Input is not active. Open the ASIO DirectX Full Duplex Setup dialog. Make sure that a device is selected in the input Ports section and it’s check box is activated’.
When I close this I get another message, ’ No hardware found or already in Use’.

Does anyone know how I can get the M Audio sound card working again?

Hi,

Try to restart Cubase. If it doesn’t help, try to reinstall the Audio Device driver, please. Make sure you install it as administrator, please.

Just to complicate things the driver has disappeared and it seems impossible to download one anywhere.

Is it this one?
https://web.archive.org/web/20170708091406/http://avid.force.com/pkb/articles/download/Fast-Track-Ultra-Drivers