I would try waiting on that screen for a couple of minutes to see if it changes. It doesn't sound like it finished downloading the payload or else the Wii should have hung when the exploit failed to find it.
I kept the cursor on the screen and it loaded.
My friend tested this with his NTSC-J and PAL Wii, didn’t work.
NTSC-J gave a “Something is wrong!” error.
PAL just froze
I know of a way to get the NTSC-J and PAL versions on the NTSC-U Wii, so if you want me to help you with that please DM me.