Deleted 7777 Cloudformation but still error

[ziming]

So i followed your advice in another closed issue to uninstall by deleting 7777 Cloudformation and try again but I still get errors.

I have 2 database in the region i want to access. Trying the 1st database give me this error

Setting up 7777 in the AWS account, this usually takes 30 seconds.
    ResourceNotReady: Resource is not in the state stackCreateComplete
    Code: ResourceNotReady

Trying the 2nd database give me this error

7777 needs to update resources in the AWS account, this can take a couple of minutes.
    ValidationError: Stack:arn:aws:cloudformation:ap-southeast-1:some-random-digits:stack/port7777/some-random-uuid is in ROLLBACK_COMPLETE state and can not be updated.
    Code: ValidationError

Retrying the 1st database give me this error

Retrieving the container security group.
    Error: Failed to retrieve the security group 7777-container-security-group-vpc-some-identifier

Retrying the 2nd database give me this error

7777 needs to update resources in the AWS account, this can take a couple of minutes.
    ValidationError: Stack:arn:aws:cloudformation:ap-southeast-1:some-identifier:stack/port7777/some-uuid is in ROLLBACK_COMPLETE state and can not be updated.
    Code: ValidationError

[mnapoli]

The error:

ValidationError: Stack:arn:aws:cloudformation:ap-southeast-1:some-random-digits:stack/port7777/some-random-uuid is in ROLLBACK_COMPLETE state and can not be updated.

tells us that the CloudFormation deployment failed and is now stuck. Usually it's a matter of deleting the failed stack and re-trying, but you've done that already. I suspect there might be some permissions issues, could you look into CloudFormation, find the port7777 stack, then look in the "Events" tab and see what is the error that causes the stack to fail to deploy? That should be the root cause of all of this.