Pro Licence trouble with Dev Mode

Hi there,

We are trying to switch our license on the production environment http://www.capelli24.it.

When verifying the license, I get the following error:

The license key is correct but already in use on another site. See the FAQ for how to enable the Pro version in development mode.

I’ve just discovered that we are not using the following setup on our staging environment staging.capelli24.it.

define(‘W3TC_PRO_DEV_MODE’, true);

Could you please reset the active URL associated with this key?

Thanks in advance,
Tiziano