I was late to make a new weekly budget in the app and now it won’t allow me to “pay” bills on their proper date.

I was paid on the 10th and paid bills (in real life) that same day but because the app budget was created (though i thought I backdated the pay date to the 10th) on the 13th, I’ve now allotted money to pay the bill but I can’t mark it as paid in the app because it won’t allow me to pick a date prior to the 13th as the pay date.