Front page static mixed with a post page (after WP42 upgrade & migrate phase)

Hi

Suddenly after this automatic update and/or in combination of migrating old followers from old blog, now my page https://www.sejustloveit.com will start to show you the static page plus it then adds the picture and title from a separate post on “STANDARD EDITION OPTIONS BUYABLE?”

Please can you tell me what is causing this issue, and how to fix this.

Thanks for your assistants

Ann