You need the humidity bumped up to 50/60% you can do this by misting, also ditch the log hide they are not very good, you need something with one entrance and one exit... it needs to be a snug fit so your ball can feel secure.
The warm side needs to be around 88-90F
cool side is fine.
I would wait for someone else to post about the heating, i would recommend a UTH with a thermostat.
Can you post a pic of your set up?