Did copy paste work before? Try going to s memo, open new note, paste object, chose clipboard and clear/delete the clipboard history.
If you are rooted then try
1. boot recovery (CWM) > advanced > wipe cache
2. reboot phone > Root Explorer > delete /data/clipbord/*
3. reboot recovery again > advanved > fix permissions
4. reboot phone > it's fine
Hope it will fix the issue.