All error codes

disk_type_not_supported

HTTP 422 Error

What happened

You sent disk_type to a server type where the storage class of the system disk is part of the type. Only types with graphics cards let you choose it.

What to do

Drop disk_type. The type's own pricing shows which disk limits apply.

Retrying

Fix the request and send it again.

How it arrives

{
    "type": "https://docs.fiberax.com/errors/disk_type_not_supported",
    "title": "Error",
    "status": 422,
    "code": "disk_type_not_supported",
    "request_id": "a277dcd1ca652c65"
}

Branch your code on code, never on the wording of title.