Error after upgrading PHP 7.4

Cloud Service: GCP
Server: Openlitespeed WordPress
Linux: Ubuntu 20.04 LTS
PHP: 7.4.6

Error:
Notice: Trying to access array offset on value of type null in /var/www/html/wp-content/plugins/elementor/includes/base/controls-stack.php on line 1449

Notice: Trying to access array offset on value of type null in /var/www/html/wp-content/plugins/elementor/includes/base/controls-stack.php on line 1451

Code Causing Error
/** * End controls section. * * Used to close an existing open controls section. When you use this method * it stops adding new controls to this section. * * This method should be used inside _register_controls(). * * @since 1.4.0 * @access public */ Public function end_controls_section() { $stack_name = $this->get_name(); $current_section = $this->current_section; $section_id = $current_section['section']; $args = [ 'tab' => $current_section['tab'], ];
Error Log at /usr/local/lsws/logs/error.log

[PHP Notice:] wp_deregister_script was called incorrectorrectly. Do not deregister the jquery-core script in the administration area. To target the front-end theme, use the wp_enqueue_scrip>
[PHP Notice]: /var/www/html/wp-content/plugins/elementor/includes/base/controls-stack.php on line 1449
[PHP Notice]: /var/www/html/wp-content/plugins/elementor/includes/base/controls-stack.php on line 1451

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