Cant remove from contacts

After installing the iOS 6 updates, I attempted to remove the Emojis from my contact list as instructed since the updated included the same Emojis. I followed the apps instructions and when I pressed the remove Emojis button, the load bar would go to about half way and freeze my phone. I have tried several times for it to work and still no luck. The only way to get out of the app and unfreeze my phone (which works perfectly) is to power it off.

Tayrae22 about Emoji 3 PRO - Color Messages - New Emojis Emojis Sticker for SMS, Facebook, Twitter