Download error message wth?!!

First I find my Limewire icon gone from my desktop. Did you guys do that because I know I didnt. When I finally find it in my comp i cannot bring it up anymore so I have to uninstall and reinstall Limewire. OK no problem except now when I do a search and find music I cannot download them. It pops up an error message that says I cannot download because the file doesnt exist. I tried many different song, artists, ect and they all say the same thing. I know I am connected so what is going on? Why does it say all the files doesnt exist?