Cache Rules cookies not allowed? Error in setup

I try to add some CACHE RULES

I use their tool to make rules, last in drop down is “Cookie value of”

(any(http.request.cookies[“isloggedin”][*] contains “true”))

When I try to save it, I get this error:
use of field http.request.cookies is not allowed (Code: 20127)

???
Why?
Do I have to pay for this rule? Other rules do work

You can use the first item in the dropdown Cookie in all plans, but Cookie value of requires an Enterprise Plan.