Like many people, when we are told to do something we do it! Google notified an end user to disable cookies as a way to further protect their data. Having done so, this person can now not enter the password to access e-mail. To resolve this, re-enable cookies.
In Chrome, go to the three dots in the upper right corner, click on Settings and then click Advanced, at the bottom of the page. Click on Site Settings and then look at the settings for Cookies. There you can enable them.