Getting this error and not able to edit post

TypeError: Cannot read property 'title' of undefined
    at https://probanswer.com/wp-includes/js/dist/block-editor.min.js?ver=aacb5c07c68e448af6536df79db8f400:50:137576
    at je (https://probanswer.com/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:78:476)
    at qe (https://probanswer.com/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:89:115)
    at ph (https://probanswer.com/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:216:489)
    at lh (https://probanswer.com/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:126:409)
    at O (https://probanswer.com/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:121:71)
    at ze (https://probanswer.com/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:118:14)
    at https://probanswer.com/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:53:49
    at unstable_runWithPriority (https://probanswer.com/wp-includes/js/dist/vendor/react.min.js?ver=16.9.0:26:340)
    at Ma (https://probanswer.com/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:52:280)

• This topic was modified 4 years, 7 months ago by t-p.
• This topic was modified 4 years, 7 months ago by Jan Dembowski. Reason: Moved to Fixing WordPress, this is not a Requests and Feedback topic