Yes, you have a risk of braking your Tama when you debug it. Now, in the future, if you still want to debug a Tama, remember to be delicate with it. Debugging is the most fragile time your Tama can go through. Try GENTLY erasing the mark. Turn your Tama on again. If it does work, and you are POSITIVE you want to debug it, then GENTLY, color in that debug dot thing. Hopefully it will work, if not, erase it, and stop trying to debug it!