Cause
A path in field_paths is not writable with the write permission of the domain.
What to do
Use paths from the writable field registry.
application/problem+json
{
"type": "https://masnet.com/developers/errors/field_path_invalid",
"title": "Invalid field path",
"status": 422,
"detail": "...",
"code": "field_path_invalid",
"correlation_id": "..."
}