[Dave]

There's malicious JavaScript injected into the file http://www.sims4ever.de/highslide/hi...ith-gallery.js on the very last line.

Block Disabled:      (Update License Status)
Suspended or Unlicensed Members Cannot View Code.

https://i.imgur.com/MKlZMi4.png

Remove that from the file, clear the cache and you should hopefully be fine.