Botframework error


I integrated chatbot to microsoft teams using botframework. Sometimes I get this error while the application is running. What can I do about this issue? I am using nginx for http requests and ssl certificate is defined in it.

Exception when trying to handle message.HTTPSConnectionPool(host=‘’, port=443): Max retries exceeded with url: / (Caused by SSLError(SSLCertVerificationError(1, ‘[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self signed certificate in certificate chain (_ssl.c:1091)’)))

We are facing same issue. Kindly help.

Bot Framework Composer, built on the Bot Framework SDK, is an open-source IDE for developers to author, test, provision, and manage conversational experiences.