Unsupported settings key (cookie_policy)

Hello!
I got this message on my website

Warning: Unsupported settings key (cookie_policy) in ~/includes/library/lib_settings.inc.php (Line 39)

But i cant find the problem itself, 
Any hint where to look?

Regards
Peter

You dropped a newer 2.2.0 dev release on top of an older. There are no upgrade patches provided between dev versions.

Either do a fresh install or grab the missing entries from the upgrade patch in install/upgrade_patches/2.2.0.sql.

``INSERT IGNORE INTOlc_settings_groups(key,name,description,priority`) VALUES ('legal', 'Legal', 'Legal settings and information', 50);

INSERT IGNORE INTO lc_settings (setting_group_key, type, title, description, key, value, function, priority, date_updated, date_created) VALUES
('legal', 'local', 'Cookie Policy', 'Select a page for the cookie policy or leave blank to disable.', 'cookie_policy', '', 'page()', 10, NOW(), NOW()),
('legal', 'local', 'Privacy Policy', 'Select a page for the privacy policy consent or leave blank to disable.', 'privacy_policy', '', 'page()', 11, NOW(), NOW()),
('legal', 'local', 'Terms of Purchase', 'Select a page for the terms of purchase or leave blank to disable.', 'terms_of_purchase', '', 'page()', 12, NOW(), NOW());```