Pedro,
Thanks for opening the site up. I'm unsure why the Autotune tool isn't able to scan that page. We're investigating the cause of the problem.
In the meantime, I've manually checked all the same things that the Autotune Error checker would look for and there are no issues I can find.
From here, I'd recommend continue configuring JFBConnect and testing things. If you run into issues, let me know, and we'll gladly help resolve any issues you run into.
Thanks,
Alex