In templates/_menu-items.twig there seem to be no checks in place to exclude deleted single sections from the content which is made available in the menu editor console. This means that the plugin breaks completely as soon as you delete any singles, because empty entries are being found that then throw an error if you try to access the ID and so on.
In templates/_menu-items.twig there seem to be no checks in place to exclude deleted single sections from the content which is made available in the menu editor console. This means that the plugin breaks completely as soon as you delete any singles, because empty entries are being found that then throw an error if you try to access the ID and so on.