Blueprint Runtime Error: "Accesed None trying to read property"

Hi, I just started using Unreal engine today and I was using an asset store pack It was this oneimage

And I keep getting this error every time I try playing the game.

Blueprint Runtime Error: “Accessed None trying to read property CallFunc_GetPlayerCharacter_ReturnValue”. Blueprint: ThirdPersonGameMode Function: Execute Ubergraph Third Person Game Mode Graph: EventGraph Node: Assign On Destroyed

Hey, this means that in the ThirdPersonGameMode blueprint, which you’ll find in the content browser, there will be a node called GetPlayerCharacter somewhere in the event graph. It’s trying to call this but it’s actually returning null.

Since it’s your first time using Unreal Engine, it might be a bit dificult to fix what’s wrong, but you can disconnect the particular node causing problems