Messenger service is null

Problem/Motivation

At src/Plugin/Layout/LayoutOptions.php:463 we have:

$this->messenger->addError(t("Option definition, @option (@title), does not define a plugin id", ['@option' => $optionId, '@title' => isset($optionDefinition['title']) ? $optionDefinition['title'] : '']));

It should be replaced by

$this->messenger()->addError(t("Option definition, @option (@title), does not define a plugin id", ['@option' => $optionId, '@title' => isset($optionDefinition['title']) ? $optionDefinition['title'] : '']));

If not we get the following error:

Call to a member function addError() on null in Drupal\layout_options\Plugin\Layout\LayoutOptions->getOptionPlugin()

Steps to reproduce

• Define a [provider].layout_options.yml with a not existing plugin.
• Access to the LB page.
• The error is thrown.