Is it possible that you installed the
apache2 service from system packages, and that service may be running by default when you start the instance? You can check it by running the command:
sudo service --status-all
apache2 service appears in the list, you can stop/disable it from being started automatically by running:
sudo service apache2 stop
sudo service apache2 disable
After this, bitnami
ctlscript should success starting the service.
Also, could you check what page is being served by accessing your site at port 80?
Looking forward to your feedback,