This post is a follow-up from a previous one :
To sum up, my Dnn 7.2.2 upgrade problem seems to be "Url provider" related as suggested by Sebastian.
Because if I change my Url provider format from advanced to humanfriendly, before or after the upgrade, everything works fine and I can access my website.
But now that I'm running 7.2.2, I want to change back to the advanced mode and it does not work (same problem...blank page with the dnn logo on the tab ?).
I found this post but I don't know what to do with it and if it applies to my case :
My website is in French but I don't use multi-language (English is disabled) nor content localization.
Any help is welcome as this one bothers me for quite a while.