jalubold Salaam Jalu.
Several Indonesian ISPs appear to have been compromised as part of the DDoS originating from Bangladesh, Pakistan and Indonesia (https://community.islamic.network/d/167-ddos-attack-and-mitigation/24).
In order to mitigate this, literally thousands of IPs have been blacklisted. I'm not sure if you have a way to reach out to the ISPs, but it would appear a bad actor has control of their servers.
For now, if you have an app or service with a dedicated IP, that can be whitelisted.
I hope this helps, inshaAllah.