Apache2 vhosts domain and subdomain certificate problems

$ a2dissite default-ssl.conf

a2dissite default-ssl.conf
Site default-ssl disabled.
To activate the new configuration, you need to run:

service apache2 reload

$ service apache2 reload

$ apachectl -t -D DUMP_VHOSTS

VirtualHost configuration:
137.74.140.78:* is a NameVirtualHost
default server acegames.de (/etc/apache2/sites-enabled/000-default.conf:1)
port * namevhost acegames.de (/etc/apache2/sites-enabled/000-default.conf:1)
alias www.acegames.de
port * namevhost cloud.acegames.de (/etc/apache2/sites-enabled/001-cloud.acegames.de.conf:1)
port * namevhost ts.acegames.de (/etc/apache2/sites-enabled/002-ts.acegames.de.conf:1)
alias teamspeak.acegames.de
port * namevhost status.acegames.de (/etc/apache2/sites-enabled/003-status.acegames.de.conf:1)
port * namevhost download.acegames.de (/etc/apache2/sites-enabled/004-download.acegames.de.conf:1)
port * namevhost files.acegames.de (/etc/apache2/sites-enabled/005-files.acegames.de.conf:1)
port * namevhost en.ts.acegames.de (/etc/apache2/sites-enabled/006-en.ts.acegames.de.conf:1)
port * namevhost en.status.acegames.de (/etc/apache2/sites-enabled/007-en.status.acegames.de.conf:1)
port * namevhost en.acegames.de (/etc/apache2/sites-enabled/008-en.acegames.de.conf:1)
port * namevhost phpmyadmin.acegames.de (/etc/apache2/sites-enabled/009-phpmyadmin.acegames.de.conf:1)
port * namevhost mailboxes.acegames.de (/etc/apache2/sites-enabled/010-mailboxes.acegames.de.conf:1)
port * namevhost wiki.acegames.de (/etc/apache2/sites-enabled/011-wiki.acegames.de.conf:1)
port * namevhost admin.acegames.de (/etc/apache2/sites-enabled/012-admin.acegames.de.conf:1)
port * namevhost clouds.acegames.de (/etc/apache2/sites-enabled/013-clouds.acegames.de.conf:1)

Statusupdate:

SSL_POROTOCOL_ERROR remains for the 3 vhosts

the certificate-creation error remains without changes.

Failed authorization procedure. download.acegames.de (tls-sni-01):
urn:acme:error:connection :: The server could not connect to
the client to verify the domain :: Failed to connect to
137.74.140.78:443 for TLS-SNI-01 challenge.

now doing a full server restart. again...

nothing changes

so the server cannot connect to it self on port 443.
if i visit the site in the browser i get to see the same as when i visit acegames.de. it may be a dumb thought but couldnt it be that the server doesnt allow it because in 000-default.conf its

<VirtualHost acegames.de>
instead of
<VirtualHost acegames.de:80> or <VirtualHost *:80>