2013-08-27 12:00:34 7fa246d7b700 InnoDB: Error: There are 1 foreign key(s) pointing to "mysql"."innodb_table_stats", but there must be 0.
2013-08-27 12:00:34 7fa246d7b700 InnoDB: Error: Fetch of persistent statistics requested for table "rafal_art2"."rss_marketing_usermeta" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead.
What is this ?