Mantis:S error database version out of date 1/en

Error: The database structure appears to be out of date (config(databaseversion) is 0 and old upgrade tables exist). Version 1.x of MantisBT introduced a new upgrade process. You appear to be upgrading from a 0.XX Release. Please upgrade to 1.0.8 or 1.1.X, then upgrade to 1.2.