Update translations - Safari error

[Presta-Hoe]

When I try to update "Module translations" in the PrestaShop Back Office, I get the following message from Safari:

Safari can’t open the page. Safari can’t open the page “http://www.....com/untitled-folder/index.php?tab=AdminTranslations&submitTranslationsModules=1&token=2fb2aed7cd3a4c82bef2dfc647f209b6” because the server unexpectedly dropped the connection. This sometimes occurs when the server is busy. Wait for a few minutes, and then try again.

(I have tried many times, at different times - it never works. The "Module translations" seems to be the bulkiest translation section in the BO... server probably can't handle it? I have DreamHost though - aren't they good?)

If it is my hosts/servers fault - what do I tell them?

(They told me they don't support 3rd party software, and I have to show them "examples" for why I think this is a server, and not a PrestaShop issue.)