[Hummingbird] Uptime Report Error

When I try to track uptime, I see this error. Is there anything we can do?

Warning: array_reverse() expects parameter 1 to be array, null given in /home/musici61/public_html/wp-content/plugins/wp-hummingbird/admin/class-uptime-page.php on line 546

Warning: Invalid argument supplied for foreach() in /home/musici61/public_html/wp-content/plugins/wp-hummingbird/admin/class-uptime-page.php on line 553