We have gone through Forum but did not find the solution to rename the portfolio as desired.
We need to Rename the Portfolio as “Testimonials” and use the feature of portfolio as Testimonials. Also need to rename the slug “portfolio-item” as “testimonial-item”. We tried to rename the slug but it created Error 404: Page not found, from the Breadcrumb.
We have used " Yoast SEO" to display Breadcrumb at our website. Please see the attached screenshots.
Hoping for the solutions.