Theme error persists…

“User warning: The following module is missing from the file system: stark. In order to fix this, put the module back in its original location. For more information, see the documentation page. in _drupal_trigger_error_with_delayed_logging() (line 1128 of /home/jcrogers/public_html/includes/bootstrap.inc).” since 7.50 update and after running Cron. I’ve managed to rid myself of similar errors for contributed themes, by moving their folders to different “themes” folders, but WHAT to do with a core theme such as “Stark”? The “system” table does indeed have a reference line to “themes/stark/stark.info”, but also references ALL the other core themes, which are NOT giving errors. Ideas are much appreciated on how to rid myself of this error…Thanks,
Jake

Drupal version: 


Source: https://www.drupal.org/taxonomy/term/22/feed