I can see a typo in the line below:
sudo mv /opt/bitnami/nginx/scripts/ctls.sh /opt/bitnami/nginx/scripts/ctl.sh.disabled
You should use:
sudo mv /opt/bitnami/nginx/scripts/ctl.sh /opt/bitnami/nginx/scripts/ctl.sh.disabled
Apart from that, you should kill the process that is using port 80. Try the following:
sudo pkill -f nginx
sudo pkill -f apache
sudo /opt/bitnami/ctlscript.sh start apache