I really tried to reproduce this kind of error with a minimal working example, but whenever I strip it down the error disappears? My problem is, that the place of the page number is not fixed. In the first pages it is ok, e.g. like this:

Suddenly in my document (no new paragraph change or something like this) it is more down below, so it changes? E.g. see this:

There is no command or something like this, it just suddenly changes (after page 50) and then it stays there?
So I wanted to ask, if there is a general command with which I can fix the place of the numbers? I tried to set it with \setlength{\footskip}{5mm} which moves the page numbers up, but the problem is, that it is still different, so suddenly it is more down (after page 50).
EDIT: Here is the setting I use, I do not know which package causes the problem:
\documentclass[a4paper,
12pt,
bibliography=totoc,
index=totoc,
abstracton,
headsepline,
]{scrreprt}
\usepackage{latexsym}
\usepackage[latin1]{inputenc}
\usepackage[ngerman,english]{babel}
\usepackage{amsmath}
\usepackage{subfig}
\usepackage{float}
\usepackage{graphicx}
\usepackage{rotating}
\usepackage{mathrsfs}
\usepackage{eurosym,bm,amsmath,amssymb,verbatim}
\usepackage{listings}
\usepackage[T1]{fontenc}
\usepackage{setspace}
\usepackage [round,authoryear] {natbib} Literaturstil
%\usepackage{natbib}
\usepackage{amsthm}
%\usepackage{placeins}
\usepackage{graphicx,eso-pic,lipsum}
%\usepackage[automark]{scrpage2}
\usepackage{url}
\usepackage{tikz}
\usepackage{tocstyle}
\usetocstyle{allwithdot}
\usepackage[bookmarksopen,hyperfootnotes=false,pdftitle=, pdfauthor=,pdfsubject=Master Thesis]{hyperref}
\usepackage{fancyhdr}
\usepackage{listings}
\lstset{
language=R,
basicstyle=\scriptsize,
showstringspaces=false,
showspaces=false,
keywordstyle=\color{blue},
commentstyle=\color{green},
stringstyle=\color{black}
}
\usepackage{enumerate}
\usepackage{remreset}
\makeatletter
\@removefromreset{footnote}{chapter}
\makeatother
\usepackage{dblfnote} % multicolumn footnotes
\usepackage{booktabs} % for tables
\KOMAoption{footnotes}{multiple} % multiple footnotes
\usepackage[top=2cm,bottom=2cm]{geometry}
\usepackage{cleveref} % ref to multiple figures
\usepackage{multirow} % for multirow
\usepackage{bookmark} % for bookmarks
\usepackage{lipsum}
\usepackage{tikz}
\usetikzlibrary{backgrounds} % for quotes
\usepackage{calligra} % for dedication
\usepackage{listings} % for ROutput
EDIT: Here is my log-file, I do not know so much about LaTex, so I still do not know what causes this problem? Link to my log file.
hyperref. Which is it? – Werner Aug 04 '13 at 16:29hyperreflater. See Which packages should be loaded afterhyperrefinstead of before? and also Which package should I load first:hyperreforbookmark? – Werner Aug 04 '13 at 16:37