Server loss

This has happened twice to me. I lose all my servers in multiplayer, Refresh the minecraft and i dont get the servers back. It is ruining my gaming.
i had heaps of important servers on 1.8 pre1, 2, 3 and 4 and on the full 1.8 i lose all my servers. Also, a friend of mine said he lost all of his servers from resource packs. and 1.8.1 same thing but didnt happen to my friend. Please FIX!