I had this problem the first time I turned mine on. Make sure all the wires are screwed in all the way. Remember, the wires go On top of the metal thing in the terminal. Unscrew the terminal all the way and then put the wire in to make sure it is oriented correctly. If it still doesn’t work, try different scissors if you cut it. Sometimes the scissors themselves conduct electricity and trip the “wrong wire cut” circuit.
Hope this helps 🙂