This error completely broke our website and took it down:
E_COMPILE_ERROR: Type of EventEspresso\WpUser\domain\entities\routing\EspressoEventEditor::$data_node must be ?EventEspresso%5Ccore%5Cservices%5Cjson%5CJsonDataNode_%28as_in_class_EventEspresso%5Ccore%5Cservices%5Crouting%5CRoute%29=
(/home/naturalb/public_html/wp-content/plugins/eea-wp-user-integration/domain/entities/routing/EspressoEventEditor.php:17)
We have been using this plugin for several years. We are not using EE5. We are on EE4 and it looks like this error states that EE5 is required.