Hi @salmi.charaf,
I am seeing a lot of network timeout errors when getting content from Amazon’s servers. It may be best to use the CLI to perform this bulk export. The CLI method is more “brute force” and won’t stop after hitting several of these errors.
Take a look at this post here:
Try running that for a while and see if you have better success. You should also be able to get a bit more visibility into what is failing.