Unlocking Hard Difficulty

I have a friend who seems to be unable to unlock Hard mode. He's level 30, and has done Afin's client orders and forest exploration, but Cofy's client orders list looks like this.

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I was able to unlock Hard difficulty a long time ago myself but I have no idea how to get the Difficulty Trial order to show up for him, and can't find any straight answers online. Help please.

he just needs to end the sub class trial to unlock the order for hard difficulty, most of Cofy orders require to finish the orders in sequence to unlock then