digikam kio_slave error

QSqlDatabasePrivate::removeDatabase: connection 'ConnectionTest' is still in use, all queries will cease to work.
digikam(3336): couldn't create slave: "Unable to create io-slave:
klauncher said: Error loading 'kio_digikamdates'.
"
digikam(3336)/digikam (core) Digikam::AlbumManager::slotDatesJobResult: Failed to list dates
digikam(3336): couldn't create slave: "Unable to create io-slave:
klauncher said: Error loading 'kio_digikamalbums'.
"
digikam(3336)/digikam (core) Digikam::ImageAlbumModel::slotResult: Failed to list url:  "Could not start process Unable to create io-slave:
klauncher said: Error loading 'kio_digikamalbums'.
."
QSqlDatabasePrivate::removeDatabase: connection 'digikamDatabase-169028576' is still in use, all queries will cease to work.