Tnx for your replay obie

Here is a case, we' been married almost 5 years. Got married in 2011 and divorce in 2016. First family permit got in 2012 which was 5 years sticker visa in passport. After that I applied retained right as i use to be spouse of eea and got another 5 years BRP(in 2017) but is actually card with chip. When I started application in android phone, I scanned this card, so identify done without any issues. Then is application it self, which asks me i am applying own my residence or i can link my application to someone from eeu. As he is not my husband any more and i have my own retained rights I marked as own my residence. Then there is a section about sponsor, here i stuck. He is not my sponsor any more. Why do they need his details? Can i go through to application without this section?