API retrieves wrong totals

Hi there,
I have used the connector template from GitHub - OscarValerock/Clockify-PowerBI: This repository contains the project for a Power BI Custom connector that connects to Clockify. However the data isn’t retrieved correctly, because there’s a huge amount of hours missing in a some projects.
I have double checked my data model for mistakes, but it still doesn’t return the correct values.
Has anyone had this problem before?