Setting variable reference in Widget from another actor

I’m still fairly new to Unreal so I thought I’d find a tutorial on Widgets and work through it to make sure I’m grasping concepts and doing things correctly, so I found this tutorial: Unreal Engine 5 UI Tutorial | Kodeco

In the tutorial they set the variable reference (stored in Widget) to an Actor (GameManager) but set it from that actor itself:

But here’s what happens when I attempt to do the same thing:

I’ve made sure the variable type is correct:

What am I missing? someone Please Help before my Tiny Mind Explodes!!!

It looks like you have two sorts of game managers?