I’ve been trying the tool for several days also, and I get the error page every time. I’ve tried different browsers, devices, VPNs, logged in vs. not logged (with multiple Bonvoy accounts). I don’t think there’s any other troubleshooting or workarounds I can try.

Has anyone been successful transferring points via phone or email? I need to urgently consolidate points and book something, and it’s pretty annoying this function has not been working for some time.