I notive that I've lost the default dashboard (Dashboard 1, Dashboard 2 and Dashboard 3) which are located under the "Home" tab top-right.
I've tried to reinstall it again but it's still the same.
If I try to reach those by the Sitemap (yes they're listed under "Home>Sitemap") I got an "Error not found" :
Error (Not Found) Error details Version: Server: FDQN URL: https://FDQN/dashboard2.htm?id=0&_hjax=true&_=1499619220584 Time: 18:54:19
Plus at the bottom-right of the screen I get and Ajax error.