There are some nice things in it.
So I suggest you leave it like it is now
e.g.:
muted users translation:
gedämpfte Benutzer"gedämpft" sounds more like "steamed or damped" - you can use that term for cooking

Possible translation would be: "
Stumme Benutzer"
...but every german gamer would rather use "muted users".
Requirements -
Bedarf could be
AnforderungenSee who is playing right now! -
Sehen Sie, wer jetzt spielen! Should be:
Sehen Sie, wer jetzt spielt!User Ranking -
Benutzer RankingFull translation:
Benutzer Ranglisteor better:
Spieler RanglisteBut again I wouldnt translate such common terms.
People should be able to write/read some basic english, and words like " User" or "who is online" ...
I still doubt that we need any of these translations on a server where only english is allowed in normal chat and forums...
maybe its a nice "welcome" for players, but that could have been done in other ways.
example:
Just show the Flags...and if people click on them, they see some "welcome to maxko" message in their language + a readout where you can see how many players are logged from a country.