Fatal error! Sites down.

Fatal error: Uncaught Error: Call to undefined function Auxin\Plugin\CoreElements\Elementor\Elements\Theme_Elements\auxin_get_available_post_types_for_search() in /www/wp-content/plugins/auxin-elements/includes/elementor/widgets/theme-elements/modern-search.php:969 Stack trace: #0 /www/wp-content/plugins/auxin-elements/includes/elementor/widgets/theme-elements/modern-search.php(147): Auxin\Plugin\CoreElements\Elementor\Elements\Theme_Elements\ModernSearch->get_post_types() #1 /www/wp-content/plugins/elementor/includes/base/controls-stack.php(1950): Auxin\Plugin\CoreElements\Elementor\Elements\Theme_Elements\ModernSearch->_register_controls() #2 /www/wp-content/plugins/elementor/includes/base/controls-stack.php(498): Elementor\Controls_Stack->init_controls() #3 /www/wp-content/plugins/elementor/includes/base/widget-base.php(150): Elementor\Controls_Stack->get_stack() #4 /www/wp-content/plugins/elementor/includes/base/controls-stack.php(291): Elementor\Widget_Base->get_stack() #5 /www/wp-content/plugins/elementor/includes/b in /www/wp-content/plugins/auxin-elements/includes/elementor/widgets/theme-elements/modern-search.php on line 969

I don’t want to leave bad reviews, please fix this error asap.