Sponsor’s application Cannot verify details

I’m busy pre-filling the main applicant’s application now as its so many pages.

I decided to have a look at the sponsor’s application and started pre-filling that and I came to page 5 where it said that its not allowing me any further as they cannot verify any details and I must check if what iv entered so far is correct.

Does this mean its only because I must first complete the applicant’s application first, pay and submit before I can fill or pre-fill out the sponsor’s application?

Donations Welcome

$5.00 for a cup of coffee will keep me going. Thank you to those who have sent me a coffee, it is very much appreciated. Donations ai-8