wrong birthdate

I mistakenly entered my birth year as 1921 instead of 1981 in my DV2026 application. Will this prevent my entry from being valid? If I win, will this be a problem during the consular process? I only submitted one application.

Hi i've been selected on the dv-2018 ( my case number is 2018AS00012xxx ) so i called the KCC phone number (606-526-7500) to ask them some questions ...... so they ask me for my case number then my name then my date of birth and then they say that my birthdate is wrong so they keep asking me...