Hello Tia
In the featured section you changed the section top padding setting to 5em so we changed it to 0.
Also the section above the featured section with the title of Training Services has a white background and the featured section after it as well. hence it is creating an illusion of a huge gap. also in the services section also it was seen that you changed the bottom padding to 8em we changed it to 0 again.please check the gap is removed.
Thank you