This is driving me crazy. Pages have different names. I also checked in all the tables in the dB (Tabs, TabUrls, TabSettings) they have nothing in common.
One is an actual page. The second does a redirect to void(window.open('http://lazio.mcl.it/Portals/2/MCL/statutomcl.pdf')) (because the open link in new page doesn't work in the menu in my skin)
Where else to check?
Advanced Friendly URL Provider Duplicate URL Warni:Page Naming Conflict
Duplicate Page Details:Page naming conflict. Url of (lazio.mcl.it/il-movimento/organi-sociali/) resolves to two separate pages (Statuto MCL [//IlMovimento//StatutoMCL] [tabid = 1162], Organi Sociali [//IlMovimento//OrganiSociali] [tabid = 1163]). Only the second page will be shown for the url.
Warning Information:PLEASE NOTE : this is an information message only, this message does not affect site operations in any way.
Suggested Action:Rename one or both of the pages to ensure a unique URL
Hide this message:To stop this message from appearing in the log, uncheck the option for 'Produce an Exception in the Site Log if two pages have the same name/path?' in the Advanced Url Rewriting settings.