Some warnings

I’m getting some warnings when using PHP 7.4 and the latest version of Elementor free:

[05-Mar-2020 08:45:11 UTC] PHP Notice:  Trying to access array offset on value of type bool in /www/wp-content/plugins/elementor/includes/controls/groups/base.php on line 320
[05-Mar-2020 08:45:11 UTC] PHP Notice:  Trying to access array offset on value of type bool in /www/wp-content/plugins/elementor/includes/controls/groups/base.php on line 539
[05-Mar-2020 08:45:11 UTC] PHP Notice:  Trying to access array offset on value of type bool in /www/wp-content/plugins/elementor/includes/controls/groups/base.php on line 552