What you see is the activity of the user in the community. By adding the @ to the username I tried to notify the user, but paprica has not visited the community since October.
You have to go to the users profile to PM the user. Either click where it says SA Profile or go to the JJ Cale post and click the uploaders name at the top of the post. In the profile page click on the blue bar where it says "send message" just below the profile picture. [Login to see the link]
According to the profile the last visit was 1 week ago and the blog shows last post 3 weeks ago.
Other option are:
Use the request for re-upload buttons on the dead links. They only show on dead links left of where it says download.
Ask for a re-upload in a comment in the post.
Use the links from takefile. Though some shows as dead, they all work but you need subscription as they are premium only.