[amazon-web-services] How can I resolve the error "The security token included in the request is invalid" when running aws iam upload-server-certificate?

This can also happen when you disabled MFA. There will be an old long term entry in the AWS credentials.

Edit the file manually with editor of choice, here using vi (please backup before):

vi ~/.aws/credentials

Then remove the [default-long-term] section. As result in a minimal setup there should be one section [default] left with the actual credentials.

[default-long-term]
aws_access_key_id = ...
aws_secret_access_key = ...
aws_mfa_device = ...