minor fix focus

app/main.py

@@ -1114,7 +1114,6 @@ class AppWindow(FrontWindow):
         self.set_amounts(res)
         self._sale['number'] = res['number']
         self.field_number.setText(self._sale['number'])
-        print(self.default_journal, 'defaut journal')
         self.field_invoice_number.setText(res['invoice_number'])
         self.field_amount.setText('')
         self.set_state('payment')
@@ -1124,6 +1123,7 @@ class AppWindow(FrontWindow):
                 self.create_new_sale()
         else:
             self.message_bar.set('enter_payment', self.default_journal['name'])
+            self.field_amount.setFocus()
 
     def check_delivery_party(self):
         kind = self.store.get('kind')