Can sombody help me? Lich skill issiue

I use this build https://poe2.ninja/pob/1cbf and my hexblast do zero dmg/

I am not going to open the link but, are you casting hexblast after 50% curse duration?

Hexblast can now only detonate Curses for which at least 50% of the duration has expired. This means it can never explode Curses that have an infinite duration. Curse orbs will be visually different when 50% of the Curse duration has expired if you have Hexblast equipped. The Explosion radius of Hexblast has been increased to 2 metres (previously 1.6 metres), and it now has a maximum of 3 Explosions per cast (previously 9).