File Not uploading

Hi Team,
I have a website which works on pantheon.io, they a high level of security by live server, dep server
that don’t allow us to upload files on live server where as we can upload on dep then push it on live server but when we use MPG on Dep it works properly, But they don’t allow to upload file’s on live server
but we have transferred it to the live server as we can see the csv in file directory but mpg don’t allow us to use local file instead of upload option

And we have also tried the google sheet upload method but it also not works
I think google sheet save the data in local from the url
that’s why the error occours in that upload method

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