"sample page" shown on tab


I just set up my page https://www.sandra-abrahams.com.
When I look at my tabs I see “sample page”. How can I change it to my websites name?


Please go to wp-admin Dashboard then Settings => General there you will find:
Site Title and Tagline change those, if you would like you can remove Tagline but Site Title you have to chage with your websites name.