You need to write to prom support. Prom for some reason now massively bans different IP addresses, this was about half a year ago
In support, you need to write something like this text
We have a store [link to it]
It is connected to CPM [link to CRM]
ip = [sp srm] (can be found here
https://2ip.ru)You need to unban this ip to be able to receive orders via API