FIXED!!!!! THIS is what i did and if u had same problem where it crash when you click to play. or after the reverie world studios video it crashed.. heres what to do ..
first restart your computer..
right click on dawn of fantasy ---->properties---> Shortcut tab------>open file location---->look for dof icon name (UpdaterUpdate_New) ------>run it...... let it do its update....
Now start the game... it should work like it did for me!!!