It looks like the daily and monthly feeds are disabled in your settings.
If there were an error in the fetching process, it would show as empty arrays in this feed.
To confirm this, I see you only fetch 20 posts from Google. Check what value you have in your Overview page for the Fetched from Google section. If it shows “20” then it only fetched the weekly and so the other feeds are disabled.
Please go to your settings page /wp-admin/options-general.php?page=toplytics&tab=settings and check to make sure that Monthly Top and Daily Top are enabled and checked there. Once they are checked, please go to Overview and press Update Top button. It should now show 60 in the Fetched from Google section.