Question
Why is the "Update now" option missing in Awstats?
Answer
The following option needs to be enabled:
WHM >> Tweak Settings >> Stats and Logs [tab] >> Allow users to update Awstats from cPanel
If the "Update now" option still does not appear for a domain in Awstats after enabling the above-provided Tweak Settings option, a manual update of the user's stats needs to be run: