Error 404 when trying to download data

Hi! I’m using some devices connected to the site and started with problems to download data.
Every time I try to download it appears the “404” message.
I’m using Wemos Lolin32 devices, wifi connected . Using web dashboard.
Today I’m interested on IPTP-ACE-ARD-01 device, but can’t download from any of my devices.
Could you please help me?
Many thanks in advance.
Regards
DL

"404

The page you tried to reach is no longer available"

please help me. Thank you