email verification code live.but error coming.

This generally happens when you try login from different time zone or IP Address Computer. Your production server and the mail id you have used both are in different time zone. Choose any of the one solution:

 

1) Log in to production server via remote access, and sign in to gmail once with your credentials. They will ask for the confirmation, confirm it and log out.

 

Or 2) log in gmail to your local computer, Follow this

 

https://support.google.com/accounts/answer/1144110?hl=en and choose review this activity and take proper actions.