Fatal Error in PHP8.0

Hi, I upgraded my webserver from PHP7.4 to 8, and it caused a fatal error when trying to view the SES plugin settings page in WordPress. Also the plugin itself no longer sends emails when using PHP8.0. This is using the latest version of the lite plugin.

I’ve since had to roll back to 7.4, but I attached the error as a gist and am pasting it here:

PHP Fatal error:  Uncaught Error: Undefined constant "DeliciousBrains\WP_Offload_SES\Aws3\GuzzleHttp\IDNA_DEFAULT" in /var/www/mysite/html/wp-content/plugins/wp-ses/vendor/Aws3/GuzzleHttp/Client.php:195
Stack trace:
#0 /var/www/mysite/html/wp-content/plugins/wp-ses/vendor/Aws3/GuzzleHttp/Client.php(101): DeliciousBrains\WP_Offload_SES\Aws3\GuzzleHttp\Client->buildUri()

The page I need help with: [log in to see the link]