Semantic MediaWiki was installed and enabled but is missing an appropriate upgrade key.
3.1.6 (smw:2019-09-23)
Semantic MediaWiki's internal database structure has changed and requires some adjustments to be fully functional. There can be several reasons including:
An administrator (or any person with administrator rights) has to run either MediaWiki's update.php or Semantic MediaWiki's setupStore.php maintenance script.
You may also consult the following pages for further assistance: