Blueprint Runtime Error : Accessed None

Good Morning,

I’m sorry to bother you with that kind of ez question…I’m currently following the tutorial of Game Dev Academy about blueprint.

We’re making a simple game with a score to reduce, and a live lost when you loose a life.
But i’ve got this message log about unreal which can’t read about my poperty GameMode…

Maybe you can help me with this? Thank you very much and have a nice day ! :slight_smile: