ORA-30450: refresh_after_errors was TRUE; The following MVs could not be refreshed: string

ORA-30450: refresh_after_errors was TRUE; The following MVs could not be refreshed: string

Cause: One or more errors occurred during a refresh of multiple summaries.

Action: The number_of_failures parameter returns the count of how many failures occurred. The trace logs for each refresh operation describe the each individual failure in more detail