Seaquel
All MySQL error codes
MySQL error code

MySQL error 3993

MySQL server error 3993 is ER_DISABLE_AUTO_POSITION_REQUIRES_ASYNC_RECONNECT_OFF, reported with SQLSTATE HY000.

CHANGE REPLICATION SOURCE TO SOURCE_AUTO_POSITION = 0 cannot be executed because Asynchronous Replication Connection Failover is enabled i.e. CHANGE REPLICATION SOURCE TO SOURCE_CONNECTION_AUTO_FAILOVER = 1.
Error3993
NameER_DISABLE_AUTO_POSITION_REQUIRES_ASYNC_RECONNECT_OFF
SQLSTATEHY000
GroupServer errors

Source: MySQL 8.4 Error Reference