That picture is from the Rapier skin and uses script.embuary.info to grab info directly from theMovieDB it does not need an Emby database at all. No skin needs an Emby database to use use the Embuary info script.
Not sure why it won’t display info the the OP but have you tried reinstalling script.embuary.info
I’m not even sure the extendedinfo script is Kodi 19 / Python 3 compatible, most skins now use the embuaryinfo script.