[SOLVED]
edit: I'm so confused why this fixed my issue...but instead of targeting a game object directly or through a tag or a variable, I simply removed ALL of them and PlayMaker still somehow knows what I am referencing. It's amazing! I literally tell it to scale NOTHING and it scales a specific object perfectly. So weird!!!
So, the first time I play my game I see the error below but it still lets me run the scene and all the actions work properly. However, whenever my character dies and I reload the level it pauses my game, provides the same error again on my prefab and completely stumps me:
Error loading action: prefabMosquito : FSM : destroy : HutongGames.PlayMaker.Actions.SetScale : vector
Even when I completely remove the "SetScale" action I still get this error. I even deleted the prefab altogether and I still got this error. I even deleted all vector variables and attempted re-installing Unity and re-installing PlayMaker but it's still giving me this error. I can't move on with my game until I solve this issue. Please help! Thanks.