error vmdebug self::$_jpConfig->lang it_it

[unkus_nob]

Good evening everyone, I have installed virtuemart 2. in joomla 2.5, and I find this error when I enter the virtuemart component.
vmdebug self :: $ _jpConfig-> lang en_us
vmdebug vmTime: loadConfig db no: 0.0023219585418701
Can anyone help me?

thanks in advance

Stefania