TheBOTNET.com Authentication: Unhandled exception error message

When I try to connect to the BOTNET.com, why do I get this error?
How do I solve this problem?
I have tried cleaning registries using CCleaner, but nothing happened.
I have also tried adding this in the allow program list, but still no luck.

Error message:
Unhandled exception has occurred in a component in your application. If you click Continue, the application will ignore this error and attempt to continue.
Unable to connect to the remote server.
