Augmentation of SoH - what did I do wrong?

Hi All;
I bought clear SoH, then bought Soul Crystal Red 7 and went to Giran Blacksmith and augmented it adding Acum. So I have SoH Acum.

Now I bought Top Grade Life Stone 76+ - I'm OL lvl 76, and would like to Augment the weapon with the Life Stone. Now, when I go to Giran Blacksmith I have no "Weapon Augmentation" option available, I have only "Weapon enhancement" option available - when I enter "Weapon enhanement" the Blackmisth window is clear ;/.

What did I do wrong? Does it mean that if I add Acum with Soul Crystal I can not add Augmentation with Life Stone?
I'm little confused - can anybody help me?

I's my first augementation so please don't laught too much

only gludio and shuttgard blacksmith shop

uffffffffffffffff, thought that I can not do it
Good new, thx Kev
btw: I run my shop and now going to work, be later (about 23:00)