I can't run my UWP c# App in Kiosk Mode on Windows 10

I have developed a UWP app in C# which runs fine when debugging. I want to prevent users from being able to close it, so want to use kiosk mode.

Every time I try to set this app to run in kiosk mode through control panel I get the error message: "We weren't able to start your app. Press Ctrl+Alt+Del to sign out, or contact your system admin. For more info, search online for error code: 0x80073cfb"

I have searched for this error and it seems to have something to do with windows store? At least that's all I can find. I've tried turning developer options on and off in windows 10, but it doesn't make any difference.

I haven't installed it manually for a user, i've just used the app that visual studio copies over to the remote machine. I dont know if this will complicate anything?!

I have tried searching for an answer on this forum, and online, but i can't find anything that is the same problem i'm experiencing.

Thank you in advance

Andrew