Oracle : Ошибка ORA-30944

"Error during rollback for XML schema '%s' table %s column '%s'"
*Cause: The given XMLType table/column which conforms to the given schema
had errors during a rollback of XML schema evolution. For more
information, see the more specific error below this one
*Action: Based on the schema, table and column information in this error
and the more specific error below, take corrective action

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