Hello Sri Jyothsna,
Welcome to the Microsoft Q&A and thank you for posting your questions here.
Regarding your explanation and image provided, role and permission is the main issue. Try to use a managed identity for authentication and not SAS tokens, and make sure you assign Storage Blob Data Contributor role at the container level within your Blob storage account and also reader role. Read this links for similar answer to your issue and for more details - https://learn.microsoft.com/en-us/answers/questions/1983870/your-translator-resource-must-have-storage-blob-da and https://learn.microsoft.com/en-us/azure/storage/blobs/assign-azure-role-data-access
If the issue persists, kindly provide the activity logs or check it for any related issue with permission and role.
I hope this is helpful! Do not hesitate to let me know if you have any other questions.
Please don't forget to close up the thread here by upvoting and accept it as an answer if it is helpful