I’ve had the same problem as you and what I did is after breaking the lock from the statue is to go back in the room and keep pressing the jump button near the ledge but more towards the spikes on the wall. This is cause Eivor to gain some height and he will automatically grab the ledge so you can climb

I’ve had the same problem as you and what I did is after breaking the lock from the statue is to go back in the room and keep pressing the jump button near the ledge but more towards the spikes on the wall. This is cause Eivor to gain some height and he will automatically grab the ledge so you can climb