Greetings

I need help because have an error in my Web page with this url:

www.simiostechnologysoftware.com/index.php/profile-view/userprofile/Vicente
or here
www.simiostechnologysoftware.com/


I can't attach file.

name of the file:
cache.php

in line 639 have this text have the error(I paint colors in the lines):

Error 639 line--> $registeredurlparams = $app->registeredurlparams;


if (empty($registeredurlparams))
{
/*
$registeredurlparams = new stdClass;
$registeredurlparams->Itemid = 'INT';
$registeredurlparams->catid = 'INT';
$registeredurlparams->id = 'INT';
*/

return md5(serialize(JRequest::getURI())); // provided //for backwards compatibility - THIS IS NOT SAFE!!!!<

---

Error
}
// Platform defaults
$registeredurlparams->format = 'WORD';
$registeredurlparams->option = 'WORD';
$registeredurlparams->view = 'WORD';
$registeredurlparams->layout = 'WORD';
$registeredurlparams->tpl = 'CMD';
$registeredurlparams->id = 'INT';

$safeuriaddon = new stdClass;

foreach ($registeredurlparams as $key => $value)
{
$safeuriaddon->$key = JRequest::getVar($key, null, 'default', $value);
}

return md5(serialize($safeuriaddon));
}