Getting error while running jupyter lab space via Sagemaker studio

I am trying to run the jupyter lab space but getting below error. Could someone please help me fixing it?

ERROR:
Error when creating JupyterLab application for space: Chanchal-first-project: User: arn:aws:sts::286476508338:assumed-role/sagemaker-studio-vpc-firewall-us-east-1-sagemaker-execution-role/SageMaker is not authorized to perform: sagemaker:CreateApp on resource: arn:aws:sagemaker:us-east-1:286476508338:app/d-iojyme91x6hs/Chanchal-first-project/JupyterLab/default with an explicit deny in an identity-based policy.

  • Week 1 , Video lab1 walkthrough
  • Trying to run the jupyter lab space.

Hmm, can you close, sign out and retry the steps in the vocareum page once again?