Pinterest Sign Up Error Due to Age Limit

I'm frustrated because Pinterest won't let me create an account, even though I meet the age requirement. Even though I entered the correct age in the age specification section, I still received the frustrating warning message "Sorry!" Unfortunately, it seems that you do not meet the requirements to join Pinterest. I attempted to increase my age, but unfortunately, it was unsuccessful. My age is not accepted. I attempted to create an account by entering my email, but unfortunately, it was not accepted.