Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
Please tell me, what website address you are using, or are you using a MapQuest app, and other similar details... e.g. if you are accessing MapQuest on a Dell computer, or some other sort of platform.
Let me know, and I will advise you how to proceed.
What is the exact and full text of the message to log on, please?
From that message, I should be able to tell you what is wrong, or how to proceed.
If you want, I can remotely control your computer - while you watch what I am doing - and find out what is wrong.