js click is working in browser, but not in changedection.io

[Tone866]

I want to scrap this site:
https://www.mydealz.de/diskussion/paywalls-von-internetseiten-idr-lokale-zeitungen-kostenlos-und-legal-freischalten-2146063
and change the comment sorting to "newest".

The following lines are working on chrome, but not on changedetction. What could be the reason for the different behavior?

document.querySelector("button[data-t=continueWithoutAcceptingBtn]").click();
document.getElementsByClassName('space--t-2')[0].click();
document.querySelector("button[value=newest_first]").click();

The problem is the 3rd line, I always get Message: javascript error: Cannot read properties of undefined (reading 'click').
I also had an other second line which also only worked in browser and I couldn't figure out why.

document.getElementsByClassName('space--fromW2-t-0')[0].click();