During the past UC2021 the search () appearance was presented.
I have done the example from the demo video and it works great because a public layer was used.
Example layer:

I have tried to implement it in my own survey with our layers, but it cannot "access" them. When copy and paste the URL of the private layer, it needs a token.
My layer:

Results:


Is it necessary to add a token so that survey can "read" the private layers themselves?
If the token is required, how can I create it, and how to add it to the URL?
Thanks a lot.