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MySQL error code

MySQL error 4004

MySQL server error 4004 is ER_DA_CANT_OPEN_ERROR_LOG, reported with SQLSTATE HY000.

Could not open file '%s' for error logging%s%s
Error4004
NameER_DA_CANT_OPEN_ERROR_LOG
SQLSTATEHY000
GroupServer errors

Source: MySQL 8.4 Error Reference