Unable to delete characters due to wrong date of birth

The game is telling me my date of birth is incorrect. I think I would know my own birth date though. There must be an error somewhere or it's possible I have put in my birthday incorrectly. Whatever the case, I am hoping I can get some help with this issue.

 

having this problem as well rn..

 

try YYYY-MM-DD, or swap around MM and DD if you think you may have wrongfully mixed them up during registration