Axact Author List Widget doesn’t work in PHP 8.0

Hi,
I have a WordPress on a Ionos 1&1 server. Since from next year (2023) they will charge for extra support for PHP 7.4 and earlier, for this reason I have decided to upgrade to PHP 8.0 now. At the time of doing so, the plugin exploded and the web fell. When reinstalling it I want to activate but get the following error:

Fatal error: Uncaught Error: Call to undefined function create_function() in /homepages/1/d592613084/htdocs/bibliotecadigital/wp-content/plugins/knr-author-list-widget/axactAuthorListWidget.php:367 Stack trace: #0 /homepages/1/d592613084/htdocs/bibliotecadigital/wp-admin/includes/plugin.php(2286): include_once() #1 /homepages/1/d592613084/htdocs/bibliotecadigital/wp-admin/plugins.php(191): plugin_sandbox_scrape('knr-author-list...') #2 {main} thrown in /homepages/1/d592613084/htdocs/bibliotecadigital/wp-content/plugins/knr-author-list-widget/axactAuthorListWidget.php on line 367

Will there be any update for PHP 8.0? Any idea what it can do?
Thanks and regards

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