Cannot view any report pages broken customize page

I am unable to access any report pages, as they do not show up in the menu.

The Customize page is also mostly empty, only showing some blocks and the following error: Warning: in_array() expects parameter 2 to be array, null given in /home/mcpestuf/public_html/wp-content/plugins/wp-slimstat/admin/view/layout.php on line 68

This doesn’t occur when the menu is set to show on the sidebar, only when it’s on the admin bar.

https://www.ads-software.com/plugins/wp-slimstat/