You may have downloaded MindCastr too many times, if you have more than one copy of MindCastr on your computer, it can often cause issues. If this is the case, DELETE every single file/folder of MindCastr and Download/Install it only once.
Your Anti Virus program might be blocking MindCastr from launching. Try Disabling your Anti Virus program for a couple minutes and then try running MindCastr.
The third possible issue might be that you don't have JAVA, you need JAVA to run MindCastr, download it for free here: https://java.com/en/download/index.jsp
If you are still not able to run MindCastr click the button below.