I assume it is skipping cogs? You could contact then, and they could send you replacement springs and star ratchets.
Or you can replace it with original DtSwiss ratchet set. Any mayor online store should have them. Just look that it needs to be for original star ratchet (1. gen.). Simply said, it must NOT contain in description EXP (2.gen.) or DEG (3.gen.) The 1.gen. is so or so the best one. Especially in maintanence perspective.