Suddenly unable to cast to WiiM Pro

[Allan_Whoops]

Within the last 24 hours, I now get the message 'The Office player is turned off or inaccessible'.

I went to the help page and went through it but no difference.

I uninstalled Media Monkey and installed the latest version (Gold licence) - no difference.

I tried casting to the WiiM using my phone and another app and that worked.

As far as I know, nothing has changed.

Any ideas, please?

Many thanks,

Allan