Change text in a one page WordPress theme

I created a website a year ago using the Frost one page WP theme I purchased, but now I need to change some of the text. The layout and function of the site are perfect, but I can’t remember how to access the areas where I revise the text (the words themselves). When I’m in wp-admin, Edit Page only displays [template id=“16” Home]. Sorry for being a dunce, but if you don’t use it, you lose it and after a year of no use, I just can’t find the answer in my head. Thank you so much for your assistance!