Resend Device Activation Mail BUTTON?

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On my Lenovo Yoga Tab with Android OS, am not able to login to my Teamviewer Ac which I successfully created. Am getting an error message as in the picture attached. I read the message by taking a photo of it with my iPhone, because the message stays just for 2 seconds and cannot be read. I can't see any place where I can request for a "resend activation mail" in Team Viewer on that device. 

Error MessageError MessagePlease help