So i designed my bot on python 3.6.5 on windows os and it running completely fine in AWS instance as well. Use an ubuntu version if you can. It already has python 3.6.5 installed or atleast no python installed. So problem with aws linux server was it already has python27 which is not really a good option to work on with rasa atleast I think that way. So go for a ubuntu instance and download all the python files.
You can find tutorials on how to setup ubuntu server the first time and all the commands you need to run! I’ll find a link i used and send that as well. @JohnDowding