Fix API problems with adding a new payment gateway.

docs/changelog/7.x.x.txt

@@ -6,6 +6,7 @@
  - International text retrieval has been optimized
  - fixed #9766: Thingy Pagination Broken
  - fixed #9779: Gallery: js for search (datepicker?) included in album view
+ - fixed #9783: payment methods are not added
 
 7.6.12
  - fixed: During postback on a recurring transaction, the routine could error out instead of catching an error.

lib/WebGUI/Shop/Pay.pm

@@ -233,7 +233,7 @@ sub www_addPaymentGateway {
     my $className = $session->form->process('className') 
         || WebGUI::Error::InvalidParam->throw(error => 'No class name passed');
 
-    my $payDriver = $self->addPaymentGateway( $className, $className->getName( $session ), { enabled => 0 } );
+    my $payDriver = $self->addPaymentGateway( $className, { enabled => 0, label =>  $className->getName($session), } );
     return $payDriver->www_edit;
 }