Fehler: *Index out of bounds

Kontext:

([
  "NAME": "WWW",
  "DATA": "EXTRA=3.21.231.245[]&REQ=news2&GROUP=bekanntmachungen&ARTICLE=3:1204629671",
  "HST": "127.0.0.1",
  "REQ": "www",
  "UDP": 33122,
])