Can you take a picture
At 24 hours old it shouldn’t have a yolk sac still
Was it hatched to early ?
If I have to assist any and they come a bit early and the yolk sac is tiny I usually put them in a small bowl on dry paper towel back in the bator to finish absorbing
If it’s a bigger yolk then I put baby back in it’s lower eggs shell in a little cup and wrap dry paper towel around the egg and baby to helps keep baby upright and not able to push out till it’s absorbed
You don’t want it to rupture so keeping baby where it can’t move around and on a clean dry surface is best.