Fixed wrong user variable in lookup.html template for edit link (was user should be found_user). There is no DeveloperForm in site/user/profile.py changed that to LookupForm.

{% load i18n %}
<p class="datetime"> 
   {% trans "Date:" %} {{ bound_field.form_fields.0 }}<br />
   {% trans "Time:" %} {{ bound_field.form_fields.1 }}
</p>