Bug: Locked door

Playing on the PS5 and have come to the mission On Deadly Wings where I have to meet Lucanis. The game is telling me to go through a door that does not open. I have tried entering on the balancing point above, but you cannot destroy the planks there. 

Because of the autosaves I only have saves from the Griffion Aerie which means I cannot do other things while I wait for a fix. The decision save I have is from D'Meta's crossing which means loosing 8 hours gameplay.

Does anyone know anything about this or know a solution? I don't want to do the Minrathos Quest for my playthrough.