Having some troubles with activating Node Wrangler on mac, seems like short cuts for the add-on are not functional. I am sure there are users of mac who has already solved this problem,
Try disableing it and then re-enable it. Do restart in method. i'm using MAC and it never showed me any error. It worked smoothly.
just pressed Ctrl+Shift and click on any node.
What is appearing in "Quick Access" in "N" menu under "Node Wrangler" options, in your Blender Node Editor.