I went to complete Shinwa's quest this morning (I had the Play now! status in my quests menu) and when I visited the page I had the following message:

Oops! - You don't have the piece of the bracelet that I am looking for! Have you visited Maleria yet?

So I visited Maleria and completed a quest, but she didn't give me a bracelet piece. When I went back to Shinwa, she was still asking me to complete a Maleria quest.

Could a piece be in your inventory (somewhere in your account?) Where you asked for a second Maleria quest?

Genius! I accidentally stocked it >.< Thank you!