SELECT data
  FROM phpwebgallery_sessions
  WHERE id = '78f5b8454c456b6bc5c56929f588bf49'
;
[mysql error 1146] Table 'aappma77.phpwebgallery_sessions' doesn't exist

UPDATE phpwebgallery_sessions
  SET expiration = now(),
  data = ''
  WHERE id = '78f5b8454c456b6bc5c56929f588bf49'
;
[mysql error 1146] Table 'aappma77.phpwebgallery_sessions' doesn't exist