If you are going to provide this "service" for everyone, you should at least obey the GPL, fork this, and post the source code along with the binaries.   You cannot change the code and only provide binaries.

On a side note its kind of sad that there are so many people in this thread asking technical questions and reporting problems.  You get what you pay for.  Pay the minimal 2% to support the dev and post the issue on their github.  Its quite possible that any problem you are having is a bug in the software.