Still having a problem with Fleksy

Hi all. I've submitted this question before but haven't been able to find any solution. I am using a jailbroken iPhone5 running IOS 6.1.2. When I try to open the application, nothing happens. I have tried deleting all of my jailbreak tweaks and still nothing. I even tried downgrading the application using iTunes, but it forces me to update and then refuses to open once again. Is anyone else having this issue? I really want my keyboard back. Thanks for any help you can give me. :-)