Unknown Text and Code on a Site

Hello I'm having an issue with my friend's portfolio site. The issue i'm having is that there's some weird text showing up located here:

http://sarahcadwallender.tk/keyboard-lab-teaching-a-song/
http://sarahcadwallender.tk/we-have-a-problem-project-middle-school-choir-and-special-ed-class-musical-collaboration/

Mostly it seems isolated to the blog pages. Can anyone help with this issue?

Hoping for a Beacon of Light,

Robert S.