@Moderator_3 I am also facing same issue. The point is that you have checks enabled which don,t allow me to have password less than 8 characters.
Not sure why the flow is broken mentioned on https://smartapi.angelbroking.com/topic/2377/guide-to-secure-your-smartapi-account-with-two-factor-authentication.
You should allow me to login and create MPIN inside my profile. I just signed up and do not have client ID.