Hello @jennifersanchez,
Thank you for contacting the support and sorry for any inconvenience that might have been caused due to that.
Here are the answers to your questions:
1. This is how to update analytics data:
You can update the analytics data by clicking on the Update data manually
button in the Dashboard >> Rank Math >> General Settings >> Analytics settings.
https://rankmath.com/kb/delete-old-analytics-data/
2. How to add Activity pages in the Sitemap
Sorry to disappoint but that feature is unfortunately not available at this time.
With that being said, there are existing feature requests, so I’ve added your vote to our internal suggestions lists. If your suggestions are something that we’re able to introduce, I’ll be sure to let you know.
You can refer our locations.kml code to add custom pages in the Sitemap:
https://github.com/rankmath/seo-by-rank-math/blob/master/includes/modules/local-seo/class-kml-file.php#L34-L36
3. And is it possible change this slug of activity of BuddyPress with a action?
We found this link in the BuddyPress support forum to change the Activity slug:
https://buddypress.org/support/topic/change-activity-slug/
Although this slug is not changed using action. The BuddyPress team, can answer this question correctly.
Hope that helps.