Error sending message: getaddrinfo EAI_AGAIN graph.facebook.com

[acv-binhnv]

we occurded issue as log detail below

Error sending message: FetchError: request to https://graph.facebook.com/v2.12/me/messages?access_token=EAArUC4vJ1e8BAECtMIRhFCURWmNmoAlYZBD2jrHLnqkzrgpdFmDs0sEBHFp6v70qzXvWlQ7tVwOIFagmaUvXyXtvSeNVbw9qmLoZCMkIIAXz3ZAvYfpOfQdtZC0gZBgNGxxxxxxxxxxxxxxx failed, reason: getaddrinfo EAI_AGAIN graph.facebook.com

as error so bot response to user very slow
pls who can help us to fix it