Get error Undefined array key “cols_count” since last update

Hello,

Just after the last update of the plugin, I got this warning:
Undefined array key “cols_count” in \wp-content\plugins\filter-everything\src\Admin\Widgets\FiltersWidget.php on line 39

This warning is displayed where I call the Filter Everything – Filters widget.
I use it without WooCommerce.

Do you have any idea how I can fix this?
Plugin version is 1.7.4.
My PHP version is 8.0.7 and WP version is 6.1.1.

Thank you!