Connection issue

I created an evironment in Cloud9 to follow the rails tutorial. The lifecycle status says "Created". When I open the environment in Cloud9 I receive the following message : This is taking longer than expected. The delay may be caused by high CPU usage in your environment, your T2 or T3 instance might be running out of burstable CPU capacity credits, or there are VPC configuration issues. Please check the VPC settings or the troubleshooting documentation for help with these issues.