This is what I saw while I was verifying my email after creating an account with Niyvi. However it seems the email already has been verified. Not sure why it was showing the Error message.
Probably just a UI issue. I saw similar cases like this on a new website, it should be easy to fix.
Btw I'm not a grammar expert but I think changing "Successful Verification" to "successful verification" is better. I don't think other websites capitalize them too. It's not like it refers to a specific/special process anyway. CMIIW.
It could be. Maybe the algorithm pulled the wrong popup. I can see my email is verified.