URL specification

Hi,
Many thanks for an excellent plugin.

I am running Meteohub on an RPi. If I point the plugin to the RPi – for example http://my-ip.co.uk:5558 everything works fine. If I point towards my ftp uploaded copy of all-sensors.txt at http://mysite.co.uk/weather_uploads/ it does not work – what am I doing wrong please? The url retrieves all-sensors.txt when pasted into a browser.
Regards,
IAn

https://ww.wp.xz.cn/plugins/meteohub/