API patch action "status"=>403, "code"=>"permission_denied"

I am trying to update field of one of my profiles and I am constantly getting:
klaviyo.profile_update('someprofileid')
=> {"errors"=>[{"id"=>"9a6ddf10-414f-4d4e-b455-d743396d97a1", "status"=>403, "code"=>"permission_denied", "title"=>"You do not have permission to perform this action.", "detail"=>"You do not have permission to perform this action.", "source"=>{"pointer"=>"/data/"}}]}

Using classic code sample in ruby:
 

module Klaviyo

class Api

API_URL = 'https://a.klaviyo.com/api/'

HEADERS = {

'Accept' => 'application/json',

'Content-Type' => 'application/json',

'Revision' => '2023-08-15'

}

def initialize

@api_key = ENV['KLAVIYO_KEY']

end

def call_api(http_method, endpoint, payload = nil)

url = URI("#{API_URL}#{endpoint}")

http = Net::HTTP.new(url.host, url.port)

http.use_ssl = true

headers = HEADERS.merge('Authorization' => "Klaviyo-API-Key #{@api_key}")

request = http_method.new(url, headers)

request.body = payload.to_json if payload

response = http.request(request)

JSON.parse(response.read_body) if response.read_body.present?

end