The EC2 instances failed to communicate with AWS Elastic Beanstalk, either because of configuration problems with the VPC or a failed EC2 instance. Check your VPC configuration and try launching the environment again. VPC 라우팅 테이블에 인터넷 게이트웨이를 연결해주지 않으면 Beanstalk 에서 EC2 생성 시 실패