Learn more about this change here.
For help regarding Aternos, we recommend you to visit our support center.
Und wieso der Server ab und zu einfach stoppt
https://help.aternos.org/de/stops
wieso [...] man in diese riesen Warteschleife mit Positionen über 1300 muss
Da können wir ja auch nichts für, wenn es so viele Spieler gibt, die auf ihren Servern spielen möchten.
Plugin schon mehrfach angefragt und genau so oft auch abgelehnt: Verursacht zu viel Belastung
könnt ihr bitte tekkit classik hinzufügen?
Funktioniert nicht, weswegen wir es damals entfernt haben.
when I scrolled to the op section it already showed my name in op.
This is only when your Aternos Username matches your [lexicon]Minecraft[/lexicon] Username.
But u said just ignore the quellcode stuff but look at the command.
Just ignore the word itself.
Is this quellcode for the server. And if it is what is the command?
Under the word "Quellcode", which you can ignore, there's a command "op YourMinecraftName". Just type it in your console and you should have the permission to use every command. Of course you should replace "YourMinecraftName" with your [lexicon]Minecraft[/lexicon] name 
What r some commands available in plugins and r they very easy to install?
You can see every command by typing this into the console:
/helpwith the mod pack option where it says FTB crashlanding FTB unleashed and so on if I download one and select it does it add those FTB crafting recipes to the server?
Yes
also what's a whitelist?
If your whitelist is activated, only players which are listed in the whitelist will be able to join your server.
Was wäre wenn die Jahreszeiten sich so verschieben würden das an weihnachten 40° warm ist und in den Sommerferien -15°
Ab nach Australien mit dir 
Das giebts aber auch als modpack
Wenn, dann wäre der Mod nur in dem Modpack dabei.
I don't know what u mean by quellcode
It's the german word for source code. The title is automatically added by our forums software. Just ignore it and have a look at the command.
But what does being a op allow u to do?
The operator on the server has all permissions to use every existing command.
Also what is a plugin?
Plugins are pieces of software which you can install on your server. Usually they add new commands and functions to your server.
Welche Plugins hast du installiert? Bekommst du eine Fehlermeldung, wenn du versuchst, etwas abzubauen?
what's a MOTD
The MOTD is the message of the day. It's the text which is shown in your [lexicon]Minecraft[/lexicon] server list.
can I use commands since I'm the server owner and public visitors can't use commands like I can access creative while they have to stay in survival and I can use /fly while they can't
This is possible. You either can operate yourself with
op YourMinecraftNameand then you'll have all permissions or you can use permission managing plugins like PermissionsEX or bPermissions and assign permissions more specific.
Also I saw that whitelist and ops don't work in 1.7.6 and up is that for everybody or just people besides the server owner so I can be a op but everybody else can't?
I think you don't understand it right. There is a text file where all operators and whitelisted players are stored. These text files can't be edited at the My Server page if your server is on version 1.7.6 or higher. That means that if you're on version 1.7.6 or higher you must edit these text files through the console.
51 NÖÖÖ
Fixed - You don't need to create a thread for that, we have an advanced monitoring system, so we always know when there's something down.
Du musst die Seite immer offen haben, damit du nicht aus der Warteschlange gekickt wirst.
Nee? 51
Abgelehnt: Veraltet