Thanks. I know wordpress doesn’t provide hosting. I think that message from Salsa was not accurate in using the term “site host” but I will check with our hosting company to be sure.
Unfortunately, we already reached out to Salsa for support. Below is there response which was not very helpful and indicated I should seek support here.
“In looking at your site, this appears to be an issue with the site host. There have been reports of WordPress not allowing step navigation on website’s their clients websites.
If your website is through WordPress, I recommend reaching out to them to help correct your button navigation issue.”