No, no one can help. The HT-M00 is a dual channel packet forwarder, the bigger brother of the equally unsupported single channel packet forwarder, or SCPF, which is not a compliant gateway that causes disruption to the community network and generally doesn’t work properly for the owner either.
See: Single Channel Packet Forwarders (SCPF) are obsolete and not supported
Whilst your issue is not related, we would ask you to disconnect the DCPF immediately and when you have a compliant gateway, we can help you with your webhook issue.