Problems with daggers rigg

[BaiQing]

Hi, I'm new to animating and I'm following the ww tutorial. Download the riggs that are compatible with ww, the classic men and women that come simple and those of daggers. Simple riggs work well but they don't have controllers like daggers which makes animations look great in no time. I would like to use the dagger riggs but the animations don't work when I try them in game. They do appear but when I play them back the sim stays in T pose and their face looks pulled back. I don't know what I'm doing wrong and I don't know how to find out why I can't use the rigg of daggers anymore. Any cape without a hero that knows how to guide me towards the light?