I did disable all plugins and activated them one by one. I found out that the plugin that cause this is REDUX FRAMEWORK.
Another issue is the footer widgets. Some time ago I posted a support ticket asking what happened to my footer. It dessaperared. Now it happened again. So I suppose that when updating wordpress or disable the plugins, some of the footer widgets dissaprears (only some of them). It is causing problems as I dont know exactly what the content of each widget was. (today I learned the lesson and I have now made a print screen) 😉
I give you the login credentials and I hope you can help to fix the issues.
Thanks