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MySQL error code

MySQL error 1803

MySQL server error 1803 is ER_MTA_RECOVERY_FAILURE, reported with SQLSTATE HY000.

Cannot recover after REPLICA errored out in parallel execution mode. Additional error messages can be found in the MySQL error log.
Error1803
NameER_MTA_RECOVERY_FAILURE
SQLSTATEHY000
GroupServer errors

Source: MySQL 8.4 Error Reference