Problem while getting the player controller in animation blueprint

I was setting some animations for my character, for example, one animation to grab items from the floor that begins when i press e, and i ask for the player controller to see if the e key is pressed, but it comes back with this error “Accessed None trying to read property CallFunc_GetPlayerController_ReturnValue”, but the animation works nice, so i dont know why it says it cant return the player controller, i attach image