Warning at the top of my page

[Beebo4144]

Hello!
I recently saw my site tscsecurity.ca abs there is a warning at the top. (I’ve also pasted it below). How do I fix this?

“Warning: Declaration of ElementorPro\Modules\Posts\Skins\Skin_Content_Base::register_controls(Elementor\Widget_Base $widget) should be compatible with Elementor\Controls_Stack::register_controls() in /home/tscsecur/public_html/wp-content/plugins/elementor-pro/modules/theme-builder/widgets/post-content.php on line 17”