Fix ticket submission

tickets/models.py

@@ -3,7 +3,6 @@ from django.conf import settings
 from django.utils.translation import ugettext_lazy as _
 from django.urls import reverse
 from django.template.loader import get_template
-from django.template import Context
 from django.core.mail import send_mail
 
 
@@ -21,7 +20,7 @@ if hasattr(settings, 'TICKETS_CATEGORIES'):
 
 
 def notify(subject, template, recipient_list, params):
-    ctx = Context(dict(site_name=SITE_NAME, **params))
+    ctx = dict(site_name=SITE_NAME, **params)
     text = get_template(template).render(ctx)
 
     for a in recipient_list: