{% extends "base.html" %}

{% load i18n %}
{% load bootstrap %}
{% load static %}

{% block title %} - Error{% endblock %}

{% block body %}
<div class="container">
  <h1 class="text-danger">{{ title }}</h1>
  <div class="alert alert-danger" role="alert">
    <p>{{ body }}</p>
    <a class="btn btn-danger" href="javascript:history.back();">Go Back</a>
  </div>
</div>
{% endblock %}

Add missing symposion proposal error template.
Add missing symposion proposal error template.
