How to i solve Niotron signup problem

Signup button is not working even i can’t be change my old email password

they don’t send me email for verification and for reset password they always say use number, letter and upercase
i wrote my password is 2468@dora
but not working
what should i do

You are note using Capital latter
i think Your password should be like this
use one capital latter one small latter one number and one symbol