Can someone help? KMTTG error I never saw before :(

Hi

I have been using KMTTG for quite a few months now, never had an issue. This morning, I got my first real scary error message. I deleted KMTTG and re-installed, did everything properly... yet when I go to d/l a program from my list, this is the message I get. Here is a screencap of it.



When I tried restarting and doing it again, got this message:



Can anyone please help out?