ah, wow. I fixed my wiki. I never thought to update the theme, in this case Vector. Also my theme comes from his git repository. All I've done is a git pull. So my issue was not related to this deprecation as you told before, it was just a version mismatching with the theme. Sorry and thanks.

Well, I have just compared a dump of the db before the update which I'm speaking, and a current one and there are no significant changes, I just see new insert into and a table in which a type blob is being mediumblob. The only changes I've done are a server update and a git update. In the server update I see httpd, httpd-tools, composer. The composer update has made me think to the wiki update with his composer dependency. There are other packages but I don't thought they are related to the web server.
Sorry if this is not the right place where ask but I have begun here the description of my issue. What can I do to ask the fix? I'm not so practiced with bug trackers and support services. Sorry again.

Since the last git pull I get an apparently broken web interface, I'm using the theme Vector. I tried to switch to another, the Material theme that looks very nice, but I get the same defect. I don't know how to debug it and all I can see is this new warning in console.
Looking into ssl_error_log in my server (an updated Centos7) I don't see any message, the only record I see is by enabling the plugin TinyMCE, that don't make any difference on the web application, is:
[Fri May 10 12:35:51.391763 2019] [php7:notice] [pid 23215] [client 10.199.180.80:56048] PHP Notice: Undefined property: Parser::$mUniqPrefix in /var/www/html/wiki/extensions/TinyMCE_MW/TinyMCE_MW.php on line 285, referer: https://10.199.180.172/wiki/index.php/Pagina_principale
Of course I tried the composer update and php maintenance/update.php, I usually do it when do git pull into the wiki directory, I also tried to download a new copy of the git wiki, and then run a new composer update that download again the dependency but I get the same result.
It's disarming, I just don't know how fix.
I suspect the problem is somewhere in the database, but don't know a maintenance job to scan.

I'm still having issue in visualization, I get the console message of deprecation of jquery.throttle-debounce and to use OO.ui.throttle/debounce instead. I don't know what I have to do to fix this issue, my application looks broken. I have the page contents at top, and the sidebar at bottom. Always looks working with a such of mobile layout. I'm following the current git version, and I have tried to pull a new clear repository, same version. I have not tried the downgrade, the issue is not so critical to try a downgrade. Any hints to fix this?