The GMail e-mail system may ask for your "recovery information" for security purposes when you try to log in from different locations (abroad, different cities, etc.) and/or computers. This is to prevent account theft. If you have not set "recovery phone and/or recovery e-mail address" information in your account, in such cases, GMail may not allow you to enter the system even if your password is correct. To avoid such problems, you can set your "recovery phone and/or e-mail" information as shown in the picture below.

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1. Firstly, after logging into your GMail account, click on the icon in the upper right corner:

2. In the window that opens, click on the "Google Account" button:

3. On the page that opens, select "Security" on the left side.

4. On the page that opens, you can fill in the fields for "Recovery phone number" and "Recovery e-mail".