In-app ads not working in any gaming apps

Hi, I have an iPhone 15 pro and yesterday all games that have video ads to get bonuses stopped working.

I can’t click on any ad links… just nothing happens or on some apps it tries to “find” an advert but then says to try again later.

I have power cycled my phone several times and also updated to the latest ios (18.1.1)

It happens on multiple games so I don’t know what’s happened to stop them working.

any help much appreciated 🌞