There was a bug in the released 1.4.0 version that prevented LOTRoster from properly creating its database when doing a brand new installation (which would result in an "Unable to determine last update time" error).

The 1.4.0 download on my website was updated with a fixed version of rmadmin.php - I recommend that people who already downloaded 1.4.0 re-download the updated archive (it is named lotroster140a.zip), and replace rmadmin.php with the copy from the updated archive.

Anyone who tried to do a new installation and ran into the issue: once you updated with the fixed version, simply return to the administration interface (http://www.yoursite.com/lotroster/rmadmin.php), and click once again on "Initialize database" to properly create the database.  ONLY do so if it's a new installation, as this will erase any existing roster data if you already had a working installation.