Any special characters in that other gmail name ?Have you actually created the new (2nd) Kabam game account with that other email yet, and now trying to use it to login to game ?Or still trying to use that new email to first actually create a Kabam account using it ?Special chars that maybe gmail itself allows might not be allowed by the text box control used by Kabam for recognizing what is a validly formatted email name (chars @ chars . com or net)
If you are having issues logging into your account, I would recommend contacting support and opening a ticket. In the game, you can tap the gear icon in the top left corner then tap on the button that says “Support”. To open a ticket, tap the button that states, “Need more help? Contact us” - or alternately, you can file one via this link.I hope you get this problem fixed soon.