Fatal error: Uncaught Error: Undefined constant "Cleantalk\ApbctWP\CURLOPT_USERAGENT" in /home/curtis854425/public_html/wp-content/plugins/cleantalk-spam-protect/lib/Cleantalk/ApbctWP/Helper.php:43 Stack trace: #0 /home/curtis854425/public_html/wp-content/plugins/cleantalk-spam-protect/lib/Cleantalk/ApbctWP/Helper.php(160): Cleantalk\ApbctWP\Helper::httpRequest('https://www.ken...', Array, Array) #1 /home/curtis854425/public_html/wp-content/plugins/cleantalk-spam-protect/cleantalk.php(1498): Cleantalk\ApbctWP\Helper::httpRequestRcToHostTest('sfw_update__wor...', Array) #2 /home/curtis854425/public_html/wp-content/plugins/cleantalk-spam-protect/cleantalk.php(1423): apbct_sfw_update__switch_to_direct() #3 [internal function]: apbct_sfw_update__init() #4 /home/curtis854425/public_html/wp-content/plugins/cleantalk-spam-protect/lib/Cleantalk/Common/Cron.php(268): call_user_func_array('apbct_sfw_updat...', Array) #5 /home/curtis854425/public_html/wp-content/plugins/cleantalk-spam-protect/cleantalk.php(262): Cleantalk\Common\Cron->runTasks(Array) #6 /home/curtis854425/public_html/wp-includes/class-wp-hook.php(324): {closure}('') #7 /home/curtis854425/public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array) #8 /home/curtis854425/public_html/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #9 /home/curtis854425/public_html/wp-settings.php(704): do_action('init') #10 /home/curtis854425/public_html/wp-config.php(96): require_once('/home/curtis854...') #11 /home/curtis854425/public_html/wp-load.php(50): require_once('/home/curtis854...') #12 /home/curtis854425/public_html/wp-blog-header.php(13): require_once('/home/curtis854...') #13 /home/curtis854425/public_html/index.php(17): require('/home/curtis854...') #14 {main} thrown in /home/curtis854425/public_html/wp-content/plugins/cleantalk-spam-protect/lib/Cleantalk/ApbctWP/Helper.php on line 43