Continuing the discussion from Setting up Subversion in Redmine:
Are you a Bitnami Cloud Hosting customer or are you trying our stacks/Cloud Images?
If you are a Bitnami Cloud Hosting customer, could you read this reps to download your "bitnami-hosting.pem" file, please?: Bitnami Wiki: SSH Private Key.
Also, remember that if you are a Bitnami Cloud Hosting customer, you can use helpdesk.bitnami.com and open a ticket there if you face more problems and you want private support.