How to upload a file in a nested directory to Storage accounts File Share service using Python SDK ?

I am trying to upload a file to the path, using ShareDirectoryClient Class of Azure Python SDK.
I have attached below the code and errors that I am getting.

path = "users/vaibhav11/projects/assets/fbx"
directories = path.lower().strip("/").split("/")
for directory in directories:
	try:    
		directory_client = directory_client.get_subdirectory_client(directory)
		if not directory_client.exists():
			directory_client.create_directory()
	except Exception as e:
		print(e.args)

with directory_client.get_file_client(file_name=upload_file.name) as file_client:
	file_client.upload_file(data = file_content, length=len(file_content))
	print("Uploaded")

The "directory_client" is an object of ShareDirectoryClient, which is used in the above code snippet to create directories. The problem faced is, with every directory that is being created I get the below Exception.

('The specifed resource name contains invalid characters.\nRequestId:fc43b173-e01a-000c-1ae8-bd388a000000\nTime:2023-07-24T04:37:52.5072468Z\nErrorCode:InvalidResourceName',)

ClientAuthenticationError

Server failed to authenticate the request. Make sure the value of Authorization header is formed correctly including the signature. 
ErrorCode:AuthenticationFailed authenticationerrordetail:The MAC signature found in the HTTP request 'E0eObuCq+OdHAtf4qG80kb3wprxR4vwIsDpjinnVvUM=' is not the same as any computed signature. Server used following string to sign: 'PUT.......'

And sometimes I even get ClientAuthenticationError. I'm not really sure, what is creating the problem in both the cases.

Any solutions and suggestions are open.

Thanks!