problem with aws config

[nassimabedi]

Hi,
I have a problem to run honeybits. First I run aws configure --profile "devops"
and successfully completed and these are result:

AWS Access Key ID [****************MPLE]: AKIAIOSFODNN7EXAMPLE
AWS Secret Access Key [****************EKEY]: wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY
Default region name [us-east-2]: 
Default output format [None]:

after that I run this command aws ec2 describe-instances --profile devops --region us-east-2
and I have this error:
An error occurred (AuthFailure) when calling the DescribeInstances operation: AWS was not able to validate the provided access credentials