Dashboard crash with PHP8.1

Plugin version: 5.0.10.2

WP version: 6.3.1

The plugin works smooth with PHP7.4 but when switched to PHP8.1 the dashboard crash with:

PHP Fatal error: Uncaught TypeError: number_format(): Argument #1 ($num) must be of type float, string given in /wp-includes/functions.php/wp-includes/functions.php(424)
Stack trace:
#0 /wp-includes/functions.php(424): number_format()
#1 /wp-content/plugins/wp-slimstat/admin/view/wp-slimstat-reports.php(1140): number_format_i18n()
#2 /wp-content/plugins/wp-slimstat/admin/view/wp-slimstat-reports.php(959): wp_slimstat_reports::raw_results_to_html()
#3 /wp-admin/includes/template.php(1443): wp_slimstat_reports::callback_wrapper()
#4 /wp-admin/includes/dashboard.php(271): do_meta_boxes()
#5 /wp-admin/index.php(203): wp_dashboard()
#6 {main}
  thrown in /wp-includes/functions.php on line 424