Connect Typebot (Is a oneclick caprover installation) with a s3 bucket (backblaze )

I have a typebot with docker (I use caprover to install) I need put on the option Upload files but I need connect first with a s3 bucket to work, I have in backblaze.com a bucket. I try to configure according typebot documentation but was not possible https://docs.typebot.io/self-hosting/guides/s3 can somebody help me with this?
I can give you
caprover access
root server access
backblaze info