Is that really the location of your bind file? It's not in a subdirectory?
By default, it should be in your Paragon Chat folder at a location similar to:
C:\Users\[user name]\AppData\Roaming\ParagonChat\Client\Settings\keybinds.txt
1. Start Paragon Chat.
2. On the start window, press the button with the blue folder. This will take you to your Paragon Chat folder in Windows Explorer.
3. From there, go to the "Client\Settings\" folder.
4. Copy the file location and paste it into your Paragon Chat.
There is also a button in the game Options menu that will load your keybinds from the default file.