Issue editing text

Hi, I’ve gone in to edit my website but when I edit the text area it’s not displaying correctly. The text is white and displaying as in ‘Visual’ view and formatted as though it’s in ‘Text’ view. (Screenshots here and here) Also I’m unable to insert images into it either, instead it looks like it’s dumping them in the ‘Add Preview Text’ area further down the page. (Screenshot) Any idea what’s causing this? Thanks