Google Sheets > Google Calendar integration

I need to integrate the following spreadsheet (https://docs.google.com/spreadsheets/d/1rccSa_53Jy6GZWDI-XqO1pGc7BUcMJwzA16nTKS10zw/edit?usp=sharing) and the attached code. Most of the code is done. It really is a quick job.