aws-pipeline/build-an-aws-vpc-with-infrastucture-as-code/terraform# terraform init

Initializing the backend...
Backend configuration changed!

Terraform has detected that the configuration specified for the backend
has changed. Terraform will now check for existing state in the backends.

Error inspecting states in the "s3" backend:
AccessDenied: Access Denied
status code: 403, request id: C3DF7296BA42EAA0, host id: cT5DShkCx5IT0EwqUhCqPJ3lLf1z8aul3PWeWo+FedFMpEQyj61L1aGnpp893x10uRhph6lhNtI=

Prior to changing backends, Terraform inspects the source and destination
states to determine what kind of migration steps need to be taken, if any.
Terraform failed to load the states. The data in both the source and the
destination remain unmodified. Please resolve the above error and try again.

Can you show the variables.tfvar file for reference
https://www.youtube.com/watch?v=3GXqa-i9na0
https://github.com/mlabouardy/aws-pipeline/tree/master/build-a-docker-swarm-cluster-on-aws/terraform

@mlabouardy Environment is deployed succesfully with my subdomain jenkins.vgshub.com after that i have tried to login with user name mlabouardy and password getting error.
please check below screenshots

amazon-ebs: Complete!
amazon-ebs: Setup SSH key
amazon-ebs: Configure Jenkins
amazon-ebs: /tmp/install-plugins.sh: line 2: $'\r': command not found
amazon-ebs: : invalid option
amazon-ebs: set: usage: set [-abefhkmnptuvxBCHP] [-o option-name] [--] [arg ...]
amazon-ebs: /tmp/install-plugins.sh: line 4: $'\r': command not found
amazon-ebs: /tmp/install-plugins.sh: line 7: $'\r': command not found
amazon-ebs: /tmp/install-plugins.sh: line 9: $'\r': command not found
amazon-ebs: /tmp/install-plugins.sh: line 10: syntax error near unexpected token `$'{\r''
amazon-ebs: '
amazon-ebs: Job for jenkins.service failed because the control process exited with error code. See "systemctl status jenkins.service" and "journalctl -xe" for details.
amazon-ebs: Starting jenkins (via systemctl):  [FAILED]

==> amazon-ebs: Terminating the source AWS instance...
==> amazon-ebs: Cleaning up any extra volumes...
==> amazon-ebs: No volumes to clean up, skipping
==> amazon-ebs: Deleting temporary security group...
==> amazon-ebs: Deleting temporary keypair...
Build 'amazon-ebs' errored: Script exited with non-zero exit status: 1

==> Some builds didn't complete successfully and had errors:
--> amazon-ebs: Script exited with non-zero exit status: 1

==> Builds finished but no artifacts were created.

Step 1: without update this ssh private key created image and launched first time and i have realized jenkins worker node is in offline due to ssh access.
Step 2: Now update jenkins username password and docker,github but little confusion on ssh -private key update on jenkins master image with packer under file "node-agent.groovy"

step 3: under session Build an AWS VPC Using Infrastructure as Code created one key in the name demo so i can use that private key (/home/devops/.ssh/id_rsa) on all location of Node-agen.groovy file right