It is not possible "cancel" thing which was never scheduled.
They have agreement on place, but meeting wasn't and isn't scheduled. Yet.
Right now Zelenskiy is so desperate, that he already agreed to let Russia to keep already taken territories, while just few months ago Zelenskiy spoke about "1991 year borders". Putin will boil him more - Russia has time, Zelenskiy has no time: Russian army takes 1-2-3 villages/towns daily...
Russian conditions for peace are known for many months already: neutral status of Ukraine (membership in EU is OK, membership in NATO is not OK), the abolition of discriminatory language laws, the opening of Russian schools, newspapers, radio and TV, the lifting of the ban on the Orthodox Church and the return of confiscated churches to it, the lifting of the ban on left-wing and socialist parties.
And main: first talk and sign agreement, then stop fire.
Russia won't accept the "let's ceasefire and then negotiate" approach—European bureaucrats have already demonstrated that their words can't be trusted. And the foolish Kaya Callas let it slip when she combined "we need a ceasefire" and "we need Russia's strategic defeat" in the same paragraph of her speech.
Therefore, Russia's approach to the ceasefire has remained unchanged for a long time: "First, we'll sign an agreement on the terms of the ceasefire and guarantees, and only then will Russia stop".