cv_database/flask_app/app/templates/errors/500.html

{% extends 'base.html' %}

{% block content %}
<span class="title"><h2>{% block title %}Error - exception{% endblock %}</h2></span>
<div class="content-container content">
Sorry - an error/exception occurred
</div><!-- end of div.content -->
<div id="div_details" style="display: inline;">
{{ html_content|safe }}
</div><!-- end of div_details -->
{% endblock %}