Hello,
Three things.
1) you have two copies of the mootools file loading in your template, that will not work. Dont rename the 1.1 to mootools.js as that means 1.0 nd the moolet will not work on 1.0. Copy the file into your template and leave the name as it was, changing the name in the template path, then turn off the opy you have loading in the moolet total users.
2) Moolet total users requires community builder which does not seem to be installed in your site:
http://www.ytudequieneres.com/components/com_comprofilerSo delete that module all together.
3) The fireboard module only runs a vertical area, I dont see it at all so I am assuming you published in a horizontal module area. It normally also requires commuity builder but their is a switch you can turn that off and read form Fireboard. I would also check on all that.
hope that helps