Thanks, I think my soil was too wet as well. So i repotted it using mix potting soil, cocopeat, perlite and roasted paddy skin (I don't know what's it's called). Cut of the yellow leaf and water it. The water drained quite instantly so I hope it's growing well now. My Gloriosum doesn't have some kind of stalk where it grows from, right below those two stalk joints, there's the root.