My login Page change, how I restore to the original

Hi,
This must have been caused by a plugin, did you install any plugins recently especially one that affects the login page or similar?

No, I make an update, but i get a .maintenancer error, then i Have this issue.
I tried to put all the plugins with plugins.hold
Change to twentythirteen but nothings works.

Thanks in Advanced.

This link shows you how to overcome the maintenance error and then try restoring your plugins and theme and see if that fixes your error,
https://www.103graphics.com/escaping-maintenance-mode-trap/

Regards,

Hi, I Do it all those thinks, inlcuding desactive themes, plugins and reinstall wordpress ( except database and wp-cont)

But I still Have the same issue, I checked and I have this error:

[14-Jul-2014 19:21:30 UTC] PHP Warning:
require(/home2/manuovi/public_html/xxxxxxxxxxxxx.com/wp-includes/pomo/mo.php): failed to open stream: No such file or directory in /home2/manuovi/public_html/xxxxxxxxxxxxx/wp-settings.php on line 76
[14-Jul-2014 19:21:30 UTC] PHP Fatal error: require(): Failed opening required ‘/home2/manuovi/public_html/comohacermasamuscular.com/wp-includes/pomo/mo.php’ (include_path=’.:/opt/php54/lib/php’) in /home2/manuovi/public_html/xxxxxxxxxxxxx/wp-settings.php on line 76

I checked and I have the libraries mo.php I reuploaded all the file but I am still having the same issue, also I have the same issue in all the sites that i Have this strange script error.

Thanks

Try re-uploading all files & folders – except the root wp-config.php & .htaccess files and the wp-content folder – from a fresh download of WordPress. Make sure that you delete the old copies of files & folder before uploading the new ones.

I do it, but I still have the issue, it can be a database problem or PHP problem?

Neither. If you are still seeing the same message, then you are still missing some core files.

I Can’t reproduce the issue now, But I still have the problem with the Javascript files, my login page is still looking strange and different.

I already:

Re-Upload a fresh copy of wordpress.
Delete plugins
Change To twelveThirteen theme
Add in wp-config this line define( ‘CONCATENATE_SCRIPTS’, false );
Add in wp-config this line define(‘WP_DEBUG’, true);

Do you have any idea what else I can do?

What problem with the Javascript files?

I have this issue:

This is the new look:
https://mobtip.biz/error/error1.png

How i restore to the original form:
https://mobtip.biz/error/original.png

The worst problem is with the menu admin page I cant expand neither collapse the menus options, so I cant modify antything in the menu part.

Thanks In Advanced

Looks like you didn’t re-upload a fresh set of core files correctly.

HOw I need to reupload the core files?

I drop the file from my local computer to the Server (via Filezilla)

Try re-uploading all files & folders – except the root wp-config.php & .htaccess files and the wp-content folder – from a fresh download of WordPress. Make sure that you delete the old copies of files & folder before uploading the new ones.

I Already made those steps, but I continue with the error ??

Did you delete all of the old files & folders as suggested above before re-uploading?