fixed condition checking for the existence of the playbook not in the

correct block of code

main.sh

@@ -53,13 +53,13 @@ then
   read -r -p "Choice: " index
 
   choosen_playbook_path=${available_playbook_paths[$index - 1]}
-fi
 
   if [[ -z $choosen_playbook_path ]]
   then
     echo "Error: invalid index."
     exit $ERROR_BECAUSE_PLAYBOOK_INVALID_OR_NOT_FOUND
   fi
+fi
 
 if [[ ! -f $choosen_playbook_path ]]
 then