frappe/webnotes/templates/pages/error.html

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

{% block header %}
<h2 class="text-danger">
	<i class="icon-exclamation-sign"></i> Oops, a server error has occured
</h2>
{% endblock %}

{% block content %}
<div class="error-content">
	<pre>%(error)s</pre>
</div>
{% endblock %}