reviewsonmywebsite.com widget alignment issues

Hi all,

Hope you can help. We are developing a new Squarespace 7.1 site for our business. We are using the reviewsonmywebsite.com widget in a standard codeblock. but we are having alignment issues.

The widget does not align in the centre and is causing the website to also have a horizontal scroll bar.

Website URL is 

https://terrier-deer-pb3a.squarespace.com/

password to access is "diamond2019"

Hope someone can help. Both Squarespace & Reviewsonmywebsite.com say they cant fix it (both blaming eachother)

add spacer in right side that heading.