It doesn't work. Guest see all posts

Please describe your MyBB setup.
I active "OUGC Guests See Only First Post" and "Visitor Helper" just only "Visitor Helper" work but not OUGC Guests See Only First Post.
(2022-01-30, 07:35 PM)Kiddo Monster Wrote: [ -> ]![[Image: 0JE5I3T.png]](https://camo.mybb.com/eb421c424677c5d48b32c3b0ae0dc0658bd6a08a/68747470733a2f2f692e696d6775722e636f6d2f304a45354933542e706e67)
I active "OUGC Guests See Only First Post" and "Visitor Helper" just only "Visitor Helper" work but not OUGC Guests See Only First Post.
what is your website url ?