Problem with social warfare after moving to php 7.4

Hi, I installed and activated php 7.4 and I get on my site: there has been a critical error on your website. I watched the log and discovered that’s social warfare plugin problem. where I move back to PHP 7.3 everything works fine it’s a problem with just PHP 7.4. This is the log error and hopeto find a solution.

[Tue Jun 30 19:21:53.617702 2020] [php7:error] [pid 23105] [client 172.69.84.46:54016] PHP Fatal error: Uncaught Error: Call to undefined function curl_multi_init() in /var/www/html/wp-content/plugins/social-warfare/lib/utilities/SWP_CURL.php:26\nStack trace:\n#0 /var/www/html/wp-content/plugins/social-warfare/lib/utilities/SWP_Post_Cache.php(645): SWP_CURL::fetch_shares_via_curl_multi()\n#1 /var/www/html/wp-content/plugins/social-warfare/lib/utilities/SWP_Post_Cache.php(516): SWP_Post_Cache->fetch_api_responses()\n#2 /var/www/html/wp-content/plugins/social-warfare/lib/utilities/SWP_Post_Cache.php(283): SWP_Post_Cache->rebuild_share_counts()\n#3 /var/www/html/wp-content/plugins/social-warfare/lib/utilities/SWP_Post_Cache.php(90): SWP_Post_Cache->rebuild_cached_data()\n#4 /var/www/html/wp-content/plugins/social-warfare/lib/utilities/SWP_Post_Cache_Loader.php(65): SWP_Post_Cache->__construct()\n#5 /var/www/html/wp-content/plugins/social-warfare/lib/buttons-panel/SWP_Buttons_Panel.php(365): SWP_Post_Cache_Loader->get_post_cache()\n#6 /var/www/html/wp-content/plugins/social-warfare/lib/buttons-panel/SWP_Buttons_Panel.php(2 in /var/www/html/wp-content/plugins/social-warfare/lib/utilities/SWP_CURL.php on line 26, referer: https://www.google.com/