Stuck with you need to install find my mobile error when trying to use. smart tag

[tchong tching]

help!
there is absolutely no where i can find "smartthings find" !
in my smarthings app,
at some time i got a bundle.js(2:10638)) uncaught syntaxerror unexpected token blue screen,
what am i doing wrong i am just trying to locate my smart tag on a map easy no?
i have tried everything

it asks to download find my device app which makes no sense and in french traçage du mobile,
the app is already included inside smartthings app correct ?

any ideas?
thanks