Ошибка при сохранении черновика

Обновился до 5.5.1
Создаю новую запись, нажимаю сохранить черновик.
выдаёт ошибку «произошла непредвиденная ошибка»
Там есть кнопка скопировать текст ошибки, вот текст:

TypeError: r is not a function
    at https://fintolk.pro/wp-includes/js/dist/components.min.js?ver=fbd4a5bf5809c79c6eef4817c6cbe9ea:7:394527
    at Vb (https://fintolk.pro/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:104:431)
    at Xi (https://fintolk.pro/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:151:136)
    at unstable_runWithPriority (https://fintolk.pro/wp-includes/js/dist/vendor/react.min.js?ver=16.9.0:26:340)
    at Ma (https://fintolk.pro/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:52:280)
    at Yb (https://fintolk.pro/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:150:420)
    at Ae (https://fintolk.pro/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:118:178)
    at xi (https://fintolk.pro/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:39:146)

И выдаёт ещё такую, при самой выдаче:

DOMException: Failed to execute 'removeChild' on 'Node': The node to be removed is not a child of this node.
    at ah (https://fintolk.pro/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:109:220)
    at Ti (https://fintolk.pro/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:145:151)
    at unstable_runWithPriority (https://fintolk.pro/wp-includes/js/dist/vendor/react.min.js?ver=16.9.0:26:340)
    at Ma (https://fintolk.pro/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:52:280)
    at Ia (https://fintolk.pro/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:140:407)
    at ze (https://fintolk.pro/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:118:14)
    at https://fintolk.pro/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:53:49
    at unstable_runWithPriority (https://fintolk.pro/wp-includes/js/dist/vendor/react.min.js?ver=16.9.0:26:340)
    at Ma (https://fintolk.pro/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:52:280)
    at mg (https://fintolk.pro/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:52:496)

что делать?

• Тема изменена 4 года, 1 месяц назад пользователем senseless1.
• Тема изменена 4 года, 1 месяц назад пользователем Yui. Причина: please use CODE button for code formatting