Multiple errors on Hubic

I am trying to download files and I have stored on Hubic and am getting many failures both with rclone and the web interface, on rclone I get 'Failed to open source object: object not found' with the web interface, it says downloading, then nothing happens. I have submitted two emails to help@ but get no reply.

Same here. My "solution" retry copy and pray, sometimes the error number is lower… :-/