After a server glitch (space ran out and site down) I had to reinstall a number of plugins including the WordPress Download Monitor. All appeared to be restored but all of the downloads added with the plugin now won't download. I get a 'nothing found' error. The files are still there and all the information for them exists in the Dashboard but the link appears broken. I've had a look in the database via PhpMyAdmin and the data appears to be there.
Please help, it's a charity website (http://www.nptcvs.com) and the downloads are full of crucial information for the users. There are loads of them so I don't want to have to upload them all again.