Weird page titles on Home and Blog when I switch Slider off

Hi there
— This is what my home page looks like with the Slider option set “ON” under the Customize” section: https://screencast.com/t/bqWbrkif0 (but I have switched the slider off in the individual page settings)

— This is what my Blog page looks like with the slider switched ON and in place : https://screencast.com/t/5yPXzOyTfVdm

As I don’t want the slider on my blog page (I have a static home page) I switched off the slider under the “Customize” section of the iExcel theme. (set “Hide i-excel Slider” OFF)

However, when I refreshed my site, the blog page title default to showing the text “Your strapline to go here…”
(And if the setting on the Home page, “Show Default i-excel Slider” is checked, it happens on that page too)

Here is a screenshot of the Blog page with this random text :
https://screencast.com/t/geiMKSZN

How can I change this default text so that it show the page title instead please?

Thanks…