wp_social_preview_title TypeError

www.ads-software.com having difficulties posting my topic, reposting here – apologies if it ends up with duplicate posts!

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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