Wah... the pyramiding looks too early to develop... looks like a small star too... How big is it in cm?

Like what Uzairi said.... feed long beans for now if not eating. Well, a star cannot eat a lot of our vegies since contain either too much sugar or water or absorbs calcium. So the best would be sawi... you can feed a few kang kung leaves and ladies fingers too.

Long beans are sweet and contain high protein, so normally sick or starving tortoises favour long beans. To gain strenght, that is why Uzairi advice you to feed long beans first since you said it has not been eating and appear weak.

Yes, you need to sun bath him. 20 minutes a day under the hot morning sun should be enough.

Do not use soil since soil contains a lot of moisture and can have mold or parasites.

For now, since your star got respitory problem, use newspaper coz I am afraid woodchips dust may cause some difficulties in recovering.

The basket is not proper at all. Get a 2ft glass tank is the best. Also, you should get a basking lamp to provide some heat when it is sick. A sick tortoise needs a bit of heat to recuperate...

Hope your tortoise gets well... I had 1 star died in my care coz of severe case of calcium dificency... the body could not absorb calcium and it had soft shell for 1 year before it died...