Without any console information it’s a bit hard to debug, it’s working fine on my end, but it could have been a small glitch or a real bug. Anyway, if it ever happens again, please check your browser console for any errors. As for your host history, the module will not keep track of hosts when it is disabled, this feature is also off by default and auto-hosts aren’t tracked. Not sure if you had any data before your module got disabled, if so, the table might be corrupted. You can also check your browser console for any errors when clicking the tab.
I also noticed that you’re not on the latest version (220.127.116.11), an update could fix issues like this. Sometimes we make small changes and that don’t make it to the changelog.