Mediawiki Stylesheet Error

Question

I have a Problem with my mediawiki installation. Some sites are not loading properly. I already read error posts for many hours but couln't find a solution for me. Most sites work fine:

Main Page

Version Page

At the "edit" site formatting breaks: Edit Page

I got following errors: Warning Error

Warning Translation: Loading failed with Script for Source ....

Warning and Error appear on all sites.

URL/load.php gives me this:

/* This file is the Web entry point for MediaWiki's ResourceLoader:
   <https://www.mediawiki.org/wiki/ResourceLoader>. In this request,
   no modules were requested. Max made me put this here. */

LocalSettings.php:

<?php
if ( !defined( 'MEDIAWIKI' ) ) {
    exit;
}

$wgSitename = "Some_Name";
$wgScriptPath = "";
$wgServer = "http://wiki.intern.zz";
$wgResourceBasePath = $wgScriptPath;
$wgLogo = "$wgResourceBasePath/resources/assets/wiki.png";
$wgEnableEmail = false;
$wgEnableUserEmail = true; # UPO
$wgEmergencyContact = "[email protected]";
$wgPasswordSender = "[email protected]";
$wgEnotifUserTalk = false; # UPO
$wgEnotifWatchlist = false; # UPO
$wgEmailAuthentication = true;
$wgDBtype = "mysql";
$wgDBserver = "localhost";
$wgDBname = "wikidb";
$wgDBuser = "wikiuser";
$wgDBpassword = "7YdLrbOCrtXnOS2FFGzF";
$wgDBprefix = "";
$wgDBTableOptions = "ENGINE=InnoDB, DEFAULT CHARSET=binary";
$wgDBmysql5 = false;
$wgMainCacheType = CACHE_ACCEL;
$wgMemCachedServers = [];
$wgEnableUploads = true;
$wgUseImageMagick = true;
$wgImageMagickConvertCommand = "/usr/bin/convert";
$wgUseInstantCommons = false;
$wgPingback = false;
$wgShellLocale = "en_US.utf8";
#$wgCacheDirectory = "$IP/cache";
$wgLanguageCode = "de";
$wgSecretKey="46c344c2c3d7af5f4210a0ead3f30002075087328e91aeece74cd086f22bbbb6";
$wgAuthenticationTokenVersion = "1";
$wgUpgradeKey = "d585d23ed115e0bd";
$wgRightsPage = ""; 
$wgRightsUrl = "";
$wgRightsText = "";
$wgRightsIcon = "";
$wgDiff3 = "/usr/bin/diff3";
$wgDefaultSkin = "vector";
wfLoadSkin( 'CologneBlue' );
wfLoadSkin( 'Modern' );
wfLoadSkin( 'MonoBook' );
wfLoadSkin( 'Vector' );

$wgShowExceptionDetails = TRUE;

nginx.conf:

        server{
                listen 80;
                root /data/www/mediawiki;
                index index.php
                server_name wiki.intern.zz;


        location ~ \.php$ {
                fastcgi_pass 127.0.0.1:9000;
                fastcgi_index index.php;
                include fastcgi.conf;
                include fastcgi_params;
        }
        }
}

Cache is always cleared.

OS is Alpine Linux with Nginx and php-fpm.

/tmp folder is writable.

There are NO rewrites set in Nginx.

Used Version is 1.30.0. Same Error with English and 1.29.2

If you need any additional Info please ask. Thank you