@Barbara,
Sorry I did not see your previous reply earlier. It looks like default woocommerce css is not loading on the site that’s why stars does not display.
Please add the following CSS to the Custom CSS section of the plugin and let me know if that fixes the issue for you?
.woocommerce .star-rating {
float: right;
overflow: hidden;
position: relative;
height: 1em;
line-height: 1;
font-size: 1em;
width: 5.4em;
font-family: star;
}
.woocommerce .star-rating::before {
content: '\73\73\73\73\73';
color: #d3ced2;
float: left;
top: 0;
left: 0;
position: absolute;
}
.woocommerce .star-rating span {
overflow: hidden;
float: left;
top: 0;
left: 0;
position: absolute;
padding-top: 1.5em;
}
.woocommerce .star-rating span::before {
content: '\53\53\53\53\53';
top: 0;
position: absolute;
left: 0;
}