0. Learn MATLAB. I say this because the error seems to say that you have not defined an input, and if you cannot read an error message, then you need to start learning how to use MATLAB.
1. Read the documentation to learn how to use the tool. That is the first thing you should always do, at least when step (0) has been followed. Again, since it appears that you are not passing the proper input (options) to the tool, reading the manual seems right. It is generally true that any useful product will have explanation of how to use it, as well as examples of use. LOOK AT THE EXAMPLES. If there is no documentation provided, then look for a better tool. If there is documentation provided, and you have not read it, then what more can I say?
2. If you have done all of the above, and are using the code as it is intended to be used, then contact the source, as the source of a tool is the most likely to be able to provide help on that tool.
