Unable to access ec2 instance | SSH Connection Timed Out

Every time I try to ssh into my virtual machine -- it says
DW-MBP:Desktop dWw ssh -i "rf_secure_key.pem" ubuntu@ec2-accesspoint.com
ssh: connect to host ec2-access_point.com port 22: Operation timed out

How do I fix this issue? I believe the firewall was mistakenly turned on during a routine update of nginx configs. I was just on the brink of completing deployment.