> other sitemap was only for guest who is visiting website not mean anyting for crawlers and google.
Okay, that make sense. In old web days you provided such a sitemap but if your site has a proper navigation and structure you should not need that. If you do you perhaps need to work on the site structure ;-)
The screenshots as the older one indicates that Google tries to index "sitemap.html" - which you highlighted yourself - which naturally will not work as Google notes.
Wild guess is that the "sitemap" part confuses Google's bot despite the html suffix.
Try renaming the page to something else like "sitestructure.html" or similar (check that you haven't linked it in the robots.txt for auto discovery!). Google will generally try to follow any link it finds on your site (even with a certain so called "link budget" each site/page has) so it naturally will also index that sitemap.html page. But it should not treat it as "the" sitemap.
In general this is actually not a Zenphoto problem.