Just says preparing to launch Rocksmith 2014.. I haven't played since March. What is going on? Did I miss something.

whats happening?  what system are you running?  Try deleting, and reinstalling the dll file.  Just do a search and you'll find the link.  or type in dll file on google, and it'll bring you right back here, only to the page with the link..  Delete the old file, and replace it with the new one.

I cant start my steam rocksmith too. but, in my computer, start the window of the game in all white, but after is closing automatically, and dont shows me any error., what could be happened? a week before all my game was functional with my dlc and cdlc :(