To determine which resource you do not have access to in the Azure AI | Content Safety Studio, you should check the role assigned to your account. Ensure that your account is assigned the role of Cognitive Services User for the Content Safety resource or Azure AI Services resource you are trying to access. If you do not have this role, you will need to contact the resource owner or administrator to gain the necessary access.
Kindly refer below link: role-based-access-control
Thank you.