Hi fadhuli taufek,
Event 4716 in Windows Server refers to a trusted domain object being deleted. If two domain controllers that do not have a trust relationship are generating this event, it could indicate that a trust relationship was previously established between the two domains and was not properly removed. It could also indicate that there is a misconfiguration in the DNS settings or a replication issue between the two domain controllers. I would recommend checking the event logs on both domain controllers for any related errors or warnings and verifying the DNS settings and replication status between the two domains.
Best regards
Qiuyang