Fatal error: Uncaught Error: Call to undefined function RankMath\wp_rand() in /home/nrznixodagmj/public_html/flexyrelief.com/wp-content/plugins/seo-by-rank-math/includes/class-installer.php:638 Stack trace: #0 /home/nrznixodagmj/public_html/flexyrelief.com/wp-content/plugins/seo-by-rank-math/includes/class-installer.php(140): RankMath\Installer->create_cron_jobs() #1 /home/nrznixodagmj/public_html/flexyrelief.com/wp-content/plugins/seo-by-rank-math/includes/class-installer.php(50): RankMath\Installer->activate() #2 /home/nrznixodagmj/public_html/flexyrelief.com/wp-includes/class-wp-hook.php(324): RankMath\Installer->activation() #3 /home/nrznixodagmj/public_html/flexyrelief.com/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters() #4 /home/nrznixodagmj/public_html/flexyrelief.com/wp-includes/plugin.php(517): WP_Hook->do_action() #5 /home/nrznixodagmj/public_html/flexyrelief.com/wp-admin/includes/plugin.php(703): do_action() #6 /home/nrznixodagmj/public_html/flexyrelief.com/wp-content/plugins/seo-by-rank-math-pro/rank-math-pro.php(518): activate_plugin() #7 /home/nrznixodagmj/public_html/flexyrelief.com/wp-content/plugins/seo-by-rank-math-pro/rank-math-pro.php(188): RankMathPro->activate_free_version() #8 /home/nrznixodagmj/public_html/flexyrelief.com/wp-content/plugins/seo-by-rank-math-pro/rank-math-pro.php(135): RankMathPro->are_requirements_met() #9 /home/nrznixodagmj/public_html/flexyrelief.com/wp-content/plugins/seo-by-rank-math-pro/rank-math-pro.php(126): RankMathPro->__construct() #10 /home/nrznixodagmj/public_html/flexyrelief.com/wp-content/plugins/seo-by-rank-math-pro/rank-math-pro.php(546): RankMathPro::get() #11 /home/nrznixodagmj/public_html/flexyrelief.com/wp-content/plugins/seo-by-rank-math-pro/rank-math-pro.php(550): rank_math_pro() #12 /home/nrznixodagmj/public_html/flexyrelief.com/wp-settings.php(545): include_once('/home/nrznixoda...') #13 /home/nrznixodagmj/public_html/flexyrelief.com/wp-config.php(109): require_once('/home/nrznixoda...') #14 /home/nrznixodagmj/public_html/flexyrelief.com/wp-load.php(51): require_once('/home/nrznixoda...') #15 /home/nrznixodagmj/public_html/flexyrelief.com/wp-blog-header.php(13): require_once('/home/nrznixoda...') #16 /home/nrznixodagmj/public_html/flexyrelief.com/index.php(18): require('/home/nrznixoda...') #17 {main} thrown in /home/nrznixodagmj/public_html/flexyrelief.com/wp-content/plugins/seo-by-rank-math/includes/class-installer.php on line 638