Weird Code On My Blog

For some reason my site is not displaying the sidebar properly… there is also HTML code appearing in my posts. It happens regardless of the theme that I choose. You can see my sidebar widgets, but they appear towards the bottom for some reason.

I don’t know if it’s because of a rogue plugin or if my site is infected with a virus.

The site is https://www.ExerciseRoutinesBlog.com

Thanks!
Raza