Add fontenc with T1 to fix missing font for \textbackslash

COMMON-Config.tex

@@ -18,6 +18,8 @@
 \usepackage{caption}
 %\captionsetup[table]{skip=8pt}
 \usepackage[numbers,round]{natbib} % Let's try alphadin bibliography style
+\usepackage[T1]{fontenc}
+
 % Setup für Codeblocks
 \lstset{
 	% Optionen