wp_social_preview_title TypeError

wordpress.org having difficulties posting my topic, reposting here – apologies if it ends up with duplicate posts! — Hi there, Many thanks for this plugin – it’s just what I was looking for on our site. I recently hit an error that the post editor refused to load on certain pages however. Copying the error gives this traceback: TypeError: Cannot read property 'wp_social_preview_title' of undefined at https://ngisweden.scilifelab.se/wp-content/plugins/wp-social-preview/build/sidebar.js?ver=239a5752a0b18deeb39119848bf0cc0c:18:11290 at je (https://ngisweden.scilifelab.se/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:78:476) at ph (https://ngisweden.scilifelab.se/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:215:173) at lh (https://ngisweden.scilifelab.se/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:126:409) at O (https://ngisweden.scilifelab.se/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:121:71) at ze (https://ngisweden.scilifelab.se/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:118:14) at https://ngisweden.scilifelab.se/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:53:49 at unstable_runWithPriority (https://ngisweden.scilifelab.se/wp-includes/js/dist/vendor/react.min.js?ver=16.9.0:26:340) at Ma (https://ngisweden.scilifelab.se/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:52:280) at mg (https://ngisweden.scilifelab.se/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.9.0:52:496) This is running WordPress 5.4.2–en_GB with version 1.0.1 of the plugin. Deactivating this plugin resolves the issue. Any ideas what is going on here? Thanks in advance! Phil