Add New Trusted CA to rasa chatbot

Hello, I Have Rabbitmq server that accepts only secure traffic. I need to add my own CA to rasa chatbot so it can communicate with my Rabbitmq using amqps protocol. I have tried to add CA under /usr/local/share/ca-certificates/ but I got the same error. Any help will be appreciated.

Hello!

Did you run sudo update-ca-certificates after adding the self-signed certificate?