Get Player Problem

Hello,![alt text][1]
After updating UE4 engine to the newest version.I’m having problems in editor while starting the game.I get the message Cant get player in blue print.I don know how to fix.Please help me out.Also I’m use the Side Scroller blue print made by Marcin.It can be found in the market place

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Try to use “Try Get Pawn Owner” and cast it to your BP class before acces Player Facing Right