Lines Between Sections

Site URL: https://tomato-lynx-pzwm.squarespace.com/

Hello all,

Does anyone know why a thin line shows up between page sections? And more importantly how I can get rid of them?

Can't look at your site without a password.

I can guess that depending on which template and which style in 7.1  you may be using, then the layout has added line blocks. They can be deleted when editing the site, if my guess is correct. 

Can you share access password?