Ovid Double Spacing

I am using the OVID theme and for some reason all my text is double spaced. I looked for an online solution and the code it told me to input broke down the whole site and forced me to reinstall the template – which i’ve now done.

Does anyone know what i need to do to correct this?

The site link is https://www.rabbilevene.com – you will see the problem when you go to the text on the ‘about’ page.