How to handle errors when using PasswordResetConfirmView - django

Question

I am using django.auth.contrib as my session based authentication framework.
I have successfully implemented a reset password feature via PasswordResetConfirmView which requires a valid token sent to a user's email to set a new password.
path('password_reset/confirm/<uidb64>/<token>/',
auth_views.PasswordResetConfirmView.as_view(
template_name='accounts/password_reset/password_reset_confirm.html'),
name='password_reset_confirm'),
This works fine if the token is valid. However, if the token is not valid (e.g. incorrect or expired), then I predictably get an error:
Reverse for 'password_reset_confirm' with arguments '('', '')' not
found. 1 pattern(s) tried:
['accounts/password_reset/confirm/(?P[^/]+)/(?P[^/]+)/$']
What's the best practice to handle this exception for the user? Ideally I want to catch it and intercept it with "Sorry, your token is invalid." Is there an existing way to do this within the django.contrib.auth framework? Looking for the best DRY approach.
Edit I am already using the validlink context in the template. The error appears to be prior to this:
{% block content %}
<h1>{{ title }}</h1>
{% if validlink %}
<p>Please enter your new password twice so we can verify you typed it in correctly.</p>
<form method="post">{% csrf_token %}
<fieldset>
<div>
{{ form.new_password1.errors }}
<label for="id_new_password1">New password:</label>
{{ form.new_password1 }}
</div>
<div>
{{ form.new_password2.errors }}
<label for="id_new_password2">Confirm password:</label>
{{ form.new_password2 }}
</div>
<input type="submit" value="Change my password">
</fieldset>
</form>
{% else %}
<p>The password reset link was invalid, possibly because it has already been used. Please request a new password reset.</p>
{% endif %}
{% endblock %}