That’s precisely what I suggested you do not do. Do not try to connect wires to some random nodes that were placed in the graph with no context; search for a valid element instead:
Use the wires to place nodes. Don’t just place nodes (unless you know exactly what you need). This will prevent you from running into situations like this.
Also, highlighting pins (here Array Element) tells you their type:
Do these 2 match on your end?