O.K. Thanks for explaining American expressions. Appreciate it! I'm coming from Germany, so it's sometimes hard 
The other thing is really weird. Below there is my VirtualHost config for this domain. As you can see, the redirection to "https://www.developmentscout.com" should work to www AND non-www selections, which is working from my location. No idea why it's not working when you are calling the "www" URL...
<VirtualHost *:80>
ServerAdmin struck.jens@gmail.com
ServerName www.developmentscout.com
ServerAlias developmentscout.com
ServerAlias developmentscout.org
ServerAlias www.developmentscout.org
ServerAlias developmentscout.de
ServerAlias www.developmentscout.de
ServerAlias development-scout.com
ServerAlias www.development-scout.com
ServerAlias www.developmentscout.info
ServerAlias developmentscout.info
UseCanonicalName Off
DocumentRoot "/var/www/vhosts/developmentscout.com/htdocs"
# HTTP header setting
<IfModule mod_headers.c>
Header always unset Pragma
Header always unset Cache-control
Header always unset X-Frame-Options
Header always set X-Frame-Options "SAMEORIGIN"
Header add Access-Control-Allow-Origin "*"
Header always edit Set-Cookie (.*) "$1; SameSite=None"
Header edit Set-Cookie ^(.*)$ $1;HttpOnly;Secure
# Header always set Strict-Transport-Security "max-age=31536000; includeSubDomains"
</IfModule>
RewriteEngine On
ErrorLog /var/log/apache2/developmentscout_error.log
LogLevel error
#LogLevel debug
#RewriteCond %{HTTP_HOST} ^developmentscout.com$ [NC,OR]
RewriteRule ^\.well-known\/acme-challenge\/ - [L]
RewriteCond %{REQUEST_URI} ^\.well\-known [NC]
RewriteCond %{HTTP_HOST} ^www.developmentscout.com$ [NC,OR]
RewriteCond %{HTTP_HOST} ^developmentscout.org$ [NC,OR]
RewriteCond %{HTTP_HOST} ^www.developmentscout.org$ [NC,OR]
RewriteCond %{HTTP_HOST} ^developmentscout.de$ [NC,OR]
RewriteCond %{HTTP_HOST} ^www.developmentscout.de$ [NC,OR]
RewriteCond %{HTTP_HOST} ^development-scout.com$ [NC,OR]
RewriteCond %{HTTP_HOST} ^www.development-scout.com$ [NC,OR]
RewriteCond %{HTTP_HOST} ^www.developmentscout.info$ [NC,OR]
RewriteCond %{HTTP_HOST} ^developmentscout.info$ [NC,OR]
RewriteRule ^ https://www.developmentscout.com%{REQUEST_URI} [END,QSA,R=permanent]
#RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,QSA,R=permanent]
</VirtualHost>
<IfModule mod_ssl.c>
# Folgender 61-75 Block soll NUR gültige Domains auf Port 443 zulassen
<VirtualHost *:443>
ServerAdmin struck.jens@gmail.com
ServerName catchall
DocumentRoot "/var/www/vhosts/developmentscout.com/htdocs"
UseCanonicalName Off
SSLEngine on
SSLCertificateKeyFile /etc/letsencrypt/live/developmentscout.com-0002/privkey.pem
SSLCertificateFile /etc/letsencrypt/live/developmentscout.com-0002/cert.pem
SSLCertificateChainFile /etc/letsencrypt/live/developmentscout.com-0002/chain.pem
<Directory />
Require all denied
</Directory>
</VirtualHost>
<VirtualHost *:443>
Protocols h2 h2c http/1.1
ServerAdmin struck.jens@gmail.com
ServerName www.developmentscout.com
ServerAlias developmentscout.com
ServerAlias developmentscout.org
ServerAlias www.developmentscout.org
ServerAlias developmentscout.de
ServerAlias www.developmentscout.de
ServerAlias development-scout.com
ServerAlias www.development-scout.com
ServerAlias developmentscout.info
ServerAlias www.developmentscout.info
UseCanonicalName Off
DocumentRoot "/var/www/vhosts/developmentscout.com/htdocs"
# HTTP header setting
<IfModule mod_headers.c>
Header always unset Pragma
Header always unset Cache-control
Header always unset X-Frame-Options
Header always set X-Frame-Options "SAMEORIGIN"
Header add Access-Control-Allow-Origin "*"
Header always edit Set-Cookie (.*) "$1; SameSite=None"
Header edit Set-Cookie ^(.*)$ $1;HttpOnly;Secure
# Header always set Strict-Transport-Security "max-age=31536000; includeSubDomains"
</IfModule>
RewriteEngine On
ErrorLog /var/log/apache2/developmentscout_error.log
LogLevel error
#LogLevel debug
#RewriteCond %{HTTP_HOST} ^developmentscout.com$ [NC,OR]
RewriteRule ^\.well-known\/acme-challenge\/ - [L]
RewriteCond %{REQUEST_URI} ^\.well\-known [NC]
RewriteCond %{HTTP_HOST} ^developmentscout.org$ [NC,OR]
RewriteCond %{HTTP_HOST} ^www.developmentscout.org$ [NC,OR]
RewriteCond %{HTTP_HOST} ^developmentscout.de$ [NC,OR]
RewriteCond %{HTTP_HOST} ^www.developmentscout.de$ [NC,OR]
RewriteCond %{HTTP_HOST} ^development-scout.com$ [NC,OR]
RewriteCond %{HTTP_HOST} ^www.development-scout.com$ [NC,OR]
RewriteCond %{HTTP_HOST} ^www.developmentscout.info$ [NC,OR]
RewriteCond %{HTTP_HOST} ^developmentscout.info$ [NC,OR]
#RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,QSA,R=permanent]
RewriteRule ^ https://www.developmentscout.com%{REQUEST_URI} [END,QSA,R=permanent]
SSLEngine on
SSLCertificateKeyFile /etc/letsencrypt/live/developmentscout.com-0002/privkey.pem
SSLCertificateFile /etc/letsencrypt/live/developmentscout.com-0002/cert.pem
SSLCertificateChainFile /etc/letsencrypt/live/developmentscout.com-0002/chain.pem
<IfModule mod_proxy_fcgi.c>
<FilesMatch ".+\.ph(p[3457]?|t|tml|ps)$">
ProxyErrorOverride on
<If "-f %{SCRIPT_FILENAME}">
SetHandler "proxy:unix:/run/php/php7.4-fpm.developmentscout.com.sock|fcgi://localhost"
</If>
SetEnvIfNoCase ^Authorization$ "(.+)" HTTP_AUTHORIZATION=$1
</FilesMatch>
<Proxy "fcgi://localhost">
ProxySet timeout=9001
</Proxy>
</IfModule>
<Directory "/usr/lib/cgi-bin">
Require all granted
AllowOverride all
LogLevel crit
</Directory>
<Directory />
Options +FollowSymLinks
AllowOverride None
LogLevel crit
</Directory>
<Directory /var/www/vhosts/developmentscout.com/htdocs>
Options +Indexes +MultiViews +FollowSymLinks +ExecCGI
Options +ExecCGI
AllowOverride all
Require all granted
LogLevel crit
</Directory>
<Directory /usr/share/awstats/wwwroot/cgi-bin>
Options +Indexes +MultiViews +ExecCGI
Options +ExecCGI
AllowOverride all
Require all granted
LogLevel crit
</Directory>
# AWStats Setup per vhost
Alias /awstatsclasses "/usr/share/awstats/wwwroot/classes/"
Alias /awstats-icon "/usr/share/awstats/wwwroot/icon/"
Alias /awstatscss "/usr/share/awstats/wwwroot/css"
ScriptAlias /awstats/ "/usr/share/awstats/wwwroot/cgi-bin/"
Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
CustomLog /var/log/developmentscout.com.access.log combined
ServerSignature On
RewriteEngine On
#Bye-bye bad bots
Options +FollowSymLinks
#RewriteCond %{HTTP_USER_AGENT} ^.*(Baiduspider).*$ [NC,OR]
#RewriteCond %{HTTP_USER_AGENT} ^.*(Sogou).*$ [NC,OR]
#RewriteCond %{HTTP_USER_AGENT} ^.*(Baidu).*$ [NC,OR]
#RewriteCond %{HTTP_USER_AGENT} ^.*(Mail.Ru).*$ [NC,OR]
#RewriteCond %{HTTP_USER_AGENT} ^.*(Ezooms).*$ [NC,OR]
#RewriteCond %{HTTP_USER_AGENT} ^.*(BLEXbot).*$ [NC,OR]
#RewriteCond %{HTTP_USER_AGENT} ^.*(Wotbox).*$ [NC,OR]
#RewriteCond %{HTTP_USER_AGENT} ^.*(MJ12bot).*$ [NC,OR]
#RewriteCond %{HTTP_USER_AGENT} ^.*(Magpie).*$ [NC,OR]
#RewriteCond %{HTTP_USER_AGENT} ^.*(magpie-crawler).*$ [NC,OR]
#RewriteCond "%{HTTP_USER_AGENT}" "brandwatch" [OR,NC]
#RewriteCond %{HTTP_USER_AGENT} ^.*(007ac9).*$ [NC,OR]
#RewriteCond %{HTTP_USER_AGENT} ^.*(Seznam).*$ [NC,OR]
#RewriteCond %{HTTP_USER_AGENT} ^.*(DotBot).*$ [NC,OR]
#RewriteCond %{HTTP_USER_AGENT} ^.*(robots).*$ [NC,OR]
#RewriteCond %{HTTP_USER_AGENT} ^.*(SemrushBot).*$ [NC,OR]
#RewriteCond %{HTTP_USER_AGENT} ^.*(MegaIndex.ru).*$ [NC,OR]
#RewriteCond %{HTTP_USER_AGENT} ^.*(crawl).*$ [NC,OR]
#RewriteCond %{HTTP_USER_AGENT} ^.*(YandexBot).*$ [NC,OR]
#RewriteCond %{HTTP_USER_AGENT} ^.*(YandexImages).*$ [NC,OR]
#RewriteCond %{HTTP_USER_AGENT} ^.*(YandexMobileBot).*$ [NC,OR]
#RewriteCond %{HTTP_REFERER} ^http://.*mykindofapps\.com/ [NC]
#RewriteRule .* - [F,L]
# Blog Chinese Bots
RewriteCond %{HTTP_USER_AGENT} Mb2345Browser|LieBaoFast|zh-CN|MicroMessenger|zh_CN|Kinza|Datanyze|serpstatbot|spaziodati|OPPO\sA33|AspiegelBot [NC]
RewriteRule ^ - [F,L]
# WordPress URLs You Will See Bots Scan For
RewriteRule (wlwmanifest.xml) - [F,L]
RewriteRule (sellers.json) - [NC,F,L]
RewriteRule (wp-content) - [NC,F,L]
RewriteRule (wp-login.php) - [NC,F,L]
RewriteRule (wp-admin) - [NC,F,L]
<IfModule mod_rewrite.c>
# Rewrite Log einschalten fuer Debugging Zwecke
#ErrorLog "/var/log/rewrite.log"
#LogLevel rewrite:trace3
#LogLevel error
#LogLevel debug
# Rewrite Log Script Ende
</IfModule>
</VirtualHost>
</IfModule>