Third person character not falling/moving

All worked perfectly, and suddenly when I was playing around with rotation stuff on event graph, engine started freezing and lagging. the character bugged in viewport and couldn’t save the character bp at all. When I played, there came some errors from anim bp about not getting is falling variable. And it couldn’t move or fall. I restarted the engine, deleted rotation nodes on event graph and now I can save the bp but still there comes the errors from anim bp and character can’t move or fall…

Wohohou… It was my player start. So now it works, weird