How to fix "Database In Unexpected Version"
Your database is running on CiviCRM 5.22.0. scheme
Your plugin in /sites/all/modules/civicrm is CiviCRM v5.20.2
You need to download and follow upgrading docs from Civicrm to upgrade your plugin folder to CiviCRM 5.22.0 or above, then do the database upgrade to make Civicrm plugin and the running database scheme run on the same version.