Bad request

For request 'GET /cgi-bin/wwwalleg/regmob.pl?wert=s.+k&recnums=227654:315765:421657:586081:696463:697137:701728:701731:701732:702663:702664:702665:706355:707506:707507:707508:739745:753149:754702:768903:804258:807376&index=4&db=rpb&barcode=&nachname=' [Missing parameter: s1]