Wild caught animals just don't always adjust to captivity unfortunately or they may take a very long time to do so. Consider attaching backgrounds around the tank and make sure there's plenty available hides so it feels secure. Try not to disturb the toad, especially during the day. At night use a low wattage dark blue or red bulb to view it then for a small period of time but I wouldn't recommended leaving these on all night.

Most toads toads are poisonous, you can see the large glands but I'm not sure of how potent this species is. With toads like marine toads and colorado river toads the poison is very potent and could cause death or psychedelic trips. So if in doubt be cautious. Wash your hands after handling the toad or any equipment and try not to annoy it, some toads may even squirt their toxin at you, so in some causes it may be best to wear glasses and gloves.