What do you mean dashboard is not connected to your website? did you do some modification or what?

Do you mean the widget does not appear when you make it available?

No i made no custom here. before the update, i custom the page user-dashboard in backoffice and then custom again the dashboard in the front. 

Now the dashboard in the back is not connected to my website, i mean, every change I do on this page doesn't work on the frontoffice and in fact, even the widgets are differents (as i show you in the print) 

Yes that's it ! the widget does not appear. whatever i do on the oxwall admin. 

What do you mean by this:  i custom the page user-dashboard in backoffice and then custom again the dashboard in the front? Did you do some customizations

Also I see that you the dashboard page has monplandetravail URL. 

What customization you did on your site, please revert all the changes you did and then we'll proceed. 

I turned it back and it works. 

monplandetravail is only the URL for a custom dashboard. It was changed by a plugin to enhanced the SEO. I put it back dashboard and then the page user-dashboard works. 
So, I made a custom widget based on the welcome widget on a custom page and it's worked on the previous version but not anymore. I see on the welcome widget of the new version, there is this behind the html code :
photo_upload - Photo upload link
change_avatar - Change avatar link

How can I put those both variable on a custom widget ?

This is bug reports section, please create a post in the General Questions section. 

ok, thanks for you help Ross !

Btw, do you have any idea why the profile widget doesn't work the page user profile ? 

This widget is frozen, i can't remove it (even if i don't want to remove it).  Do you want me to create a new post ?

I changed the theme, the problem still 

Yes, new post please, as we have a rule here: one issue per topic