templates/admin/invalid_setup.html

{% extends "admin/base_site.html" %}
{% load i18n %}

{% block breadcrumbs %}
<div class="breadcrumbs">
<a href="{% url 'admin:index' %}">{% translate 'Home' %}</a>
&rsaquo; {{ title }}
</div>
{% endblock %}

{% block content %}
<p>{% translate 'Something’s wrong with your database installation. Make sure the appropriate database tables have been created, and make sure the database is readable by the appropriate user.' %}</p>
{% endblock %}