Extension lists of all registered users who have visited the board in the last 24 hours as well as lists stats on the number of new posts, new topics and new users within the last 24 hours.

Clone (or download and move) the repository into the folder ext/rmcgirr83/activity24hours:

cd phpBB3
git clone https://github.com/rmcgirr83/activity24hours.git ext/rmcgirr83/activity24hours/

Go to admin panel -> tab customise -> Manage extensions -> enable 24 hour activity stats

1. Go to your phpBB-Board > Admin Control Panel > Customise > Manage extensions > 24 hour activity stats: disable
2. Delete all files of the extension from ext/rmcgirr83/activity24hours
3. Upload all the new files to the same location
4. Go to your phpBB-Board > Admin Control Panel > Customise > Manage extensions > 24 hour activity stats: enable