Some of the comments are suggesting totally different technologies. Don’t do that. You can stay on AWS and achieve the reliability you need. This isn’t the sort

Some of the comments are suggesting totally different technologies. Don’t do that. You can stay on AWS and achieve the reliability you need. This isn’t the sort of problem that should lead you to rebuild your whole stack. The question you should be asking is, how can I make my service automatically recover from this problem. It depends why exactly it crashed. If a simple restart fixes the problem, there are different ways you can automate this process, like Kubernetes or just writing scripts. I’m happy to give more detailed advice if you would like, my email is in my profile.