ORA-31524: could not find change set string

admin

ORA-31524: could not find change set string for CDC change table string.string
Cause: The change set wasmissing for an imported Change Data Capture change
table.
Action: Drop the importedchange table because it is invalid. Verify that the
schema containing the missing change set was included in the original export.If
needed, perform the export again, including the schema of the missing changeset.