Timeout waiting for connection from pool

POST https://dxp-webcarconfig.toyota-europe.com/v1/BuildAndBuy/me/sr?path=customize/37d0214b-a347-4e4c-864f-d14df8086d90/874803fd-44b0-4228-a4f5-e878b5197b63&c=1185f997-db07-4ab9-b004-b044bdcb6c7b