resultzgym01 on "[Plugin: Weekly Class Schedule] How to activate expansion pack 1 & 2"

downloaded the plug-in, set up a class schedule but did not work when I put the code in to the HTML function on optimize press (theme I am using). It did show Data when I copied code into text box but nothing like how it should look. I have now purchased expansion pack one and two but there are no instructions on how to activate these packs I have downloaded. I have the license Keys for both and downloads but don't know how to put them on the WordPress platform. Help would be appreciated

https://wordpress.org/plugins/weekly-class-schedule/