HAHABearr

Ugh so I generated a Monferno in Platinum, but I forgot to set it to a box location or whatever, and I didn't have 6 Pokemon in my party. Now it's glitching! I've been trying to find a way to release it (since it's like level 91 and my Pokes are level 20), but whenever I go to 'Move Pokemon" and move the cursor close to it, the game freezes. Any known fixes, or do I have to restart (thank God I just recently started)?