Import Issue

Yes, Trustpilot does not allow other people to use their logos, icons, or badges. Even if you are a Trustpilot user you are required to use their provided widgets. They sent me a cease and desist letter about it. If you would like to turn them on then you can edit the following files in the plugin.

In this folder...

\wp-review-slider-pro\public\partials\imgs

find these files...

branding-trustpilot-badge_50-DELETE.png

trustpilot_small_icon-DELETE.png

and remove the "-DELETE" text. 

If you get a warning about there already being a file with that name then delete the blank files first...

trustpilot_small_icon.png

branding-trustpilot-badge_50.png

Another option would be to use a child theme that looked for the Trustpilot review type and then inserted the logo. The benefit of the child theme is the next plugin update will not override it. Here is more about child themes...

https://wpreviewslider.userecho.com/knowledge-bases/2/articles/553-use-child-theme-to-customize-the-review-template-more