Error external links

All we have to do is change:

if ($element->link->getUrlObject()->getRouteName() === '<front>') {
  $system_path = '<front>';
}

to

if ($element->link->getUrlObject()->isRouted() && $element->link->getUrlObject()->getRouteName() === '<front>') {
  $system_path = '<front>';
}

Created issue fork and uploaded changes.

Commited to 1.0x

https://www.drupal.org/project/gin_toolbar_custom_menu/releases/1.0.1 →

https://www.drupal.org/project/gin_toolbar_custom_menu/releases/1.0.1 →