Why is get Class not compatible with spawn actor from class

Why is [get Class] not compatible with [spawn actor from class]

One returns object the other needs actor to spawn!

I am trying to build an inventory system and there is a bug, or weirdness every F***** step of the way !

The latest thing is each time I load the BP it disconnects my [array] from the [get] node with no error, when I tried to Set the entire array it says “literal values are not allowed” .

HOW am I supposed to add them(the items) to array for **spawning Actors ** when get class returns OBJECT and I can’t spawn objects.

HOW?! even [make array] RETURNS ERROR “literal values are not allowed” !