Wd sync unable to connect to remote server

when I try to set up wd sync I get the above message. I can access mycloud via website. But WDsync just don’t work keep giving above message. I am using windows 10. I deleted wd sync app(as I wanted to redo folder strucure) and reinstalled on my windows 10 desktop, since then the issue.
can someone help ? Without this I can’t sync anything from my desktop

Hello there,

Is this when you use the app remotely or does this also happens locally?

This is happening for initial set up itself. I installed WDstnc once but
then uninstalled it as I changed the folder structure. Then when
I reinstalled WD sync and try to set up it is giving that message