Deploy yaml in us-east-1 reports error.

Deploy in us-east-1 reports the following error.

I dug a bit and believed that the provided `logBucketName` parameter is not required in the https://s3.amazonaws.com/sagemaker-solutions-us-east-1/Predictive-maintenance-using-machine-learning/deployment/solution-assistant/solution-assistant.yaml

I deleted the logBucketName for that stack. And the following deployment successes.

Inspect the referenced deployment/solution-assistant/solution-assistant.yaml template and reproduce the deployment in us-east-1 to capture the reported error. Compare the deployment with and without the provided logBucketName parameter; done means the stack deploys successfully while retaining the intended solution behavior.

Written by the indexing model from the issue text.