kvCore plugin error: name already in use

Hi, I’m using PHP 7.2 and am receiving this error after initial successful plugin activation. Any suggestions on how to fix? Thank you.

Fatal error: Cannot declare class OAuthConsumer, because the name is already in use in /home/searlzrz/public_html/wp-content/plugins/kvcore-idx/includes/vendor/hybridauth/hybridauth/hybridauth/Hybrid/thirdparty/OAuth/OAuth.php on line 15

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