"blog page" post

Hi, How do I get rid of the BLOG PAGE post that appears if my home page is set to display latest posts? The text it has is “Donec id elit non mi porta gravida at eget metus. porta gravida at eget meths.”

I realise this is just a default example post but I can’t locate where I get rid of it. It doesn’t appear in the menu or the pages or posts sections.

View my development site here to see what I mean https://projectsthree.waterstreet.co.uk

Thanks, Neil