Hi,

Try to add the following code snippet to the Custom CSS area in Theme Settings to fix this issue.

.single-breadcrumbs-wrapper .woocommerce-breadcrumb .breadcrumb-last {
	display: inline;
}
.single-breadcrumbs-wrapper .woocommerce-breadcrumb .breadcrumb-link-last {
  color: #8E8E8E;
  font-weight: 400;
}
.single-breadcrumbs-wrapper .woocommerce-breadcrumb .breadcrumb-link-last:after {
    content: "/";
    margin-left: 5px;
    margin-right: 5px;
}

Regards