Senior Secondary Leaving Examinations HELP!

Hi there! There’s this section on the common App that’s giving me the worst headache ever.Under the Testing section on the Common App, there’s a senior secondary leaving examinations section(i don’t think it applies for US citizens?) and there’s a part I dont understand. :

It asks for the examination board I’ve taken. I have taken Cambridge IGCSE and Cambridge A levels. Then they ask for academic subject and score and these are what I don’t get. What is this academic subject? What is this score? Naturally I assumed the academic subject were the classes I took but I can’t seem to enter all of them because there’s a length check; at most only one subject fits in the space. For my IGCSE’s I took 10 subjects and for my A Levels I took 4. I also thought the score section was for my grades but once again, I can’t fit all my grades. For Cambridge exams, our grades are in letters(A* all the way up to U) and not numbers so I can’t fill out all my grades. :confused: I can’t submit my application because these two sections have asterisks on them so I HAVE to answer and I don’t know what to do.
My counselor and teachers have no idea what these two sections are either and neither do my american friends. I also sent an email to the Support team but they’re useless and didn’t get back to me. If you have any idea what this section is, please help!! I’ll be forever grateful! Thank you so much!!

Anyone?