process bulk action in clients

When customers try to delete, I get the error “You do not have sufficient privileges to access this page”.

tested in 3.4.2 and 3.5.1.

This is the code to ejectute this bulk action

function process_bulk_action()
	{

        //Detect when a bulk action is being triggered...
        if( 'trash'===$this->current_action() ) {
            wp_die('Se enviaron a la papelera las facturas seleccionadas');
        }

    }

Any solution?

Thanks

http://wordpress.org/extend/plugins/dyn-business-panel/