diff --git a/counter/models.py b/counter/models.py
index c1f11c62..cd2e5a84 100644
--- a/counter/models.py
+++ b/counter/models.py
@@ -301,7 +301,7 @@ class Selling(models.Model):
         super(Selling, self).delete(*args, **kwargs)
 
     def send_mail_customer(self):
-        event = self.product.eticket.event_title
+        event = self.product.eticket.event_title or _("Unknown event")
         subject = _('Eticket bought for the event %(event)s') % {'event': event}
         message_html = _(
             "You bought an eticket for the event %(event)s.\nYou can download it on this page %(url)s."
diff --git a/locale/fr/LC_MESSAGES/django.mo b/locale/fr/LC_MESSAGES/django.mo
index aa90a803..d78b43b6 100644
Binary files a/locale/fr/LC_MESSAGES/django.mo and b/locale/fr/LC_MESSAGES/django.mo differ
diff --git a/locale/fr/LC_MESSAGES/django.po b/locale/fr/LC_MESSAGES/django.po
index f2a46884..5dd08a0f 100644
--- a/locale/fr/LC_MESSAGES/django.po
+++ b/locale/fr/LC_MESSAGES/django.po
@@ -6,7 +6,7 @@
 msgid ""
 msgstr ""
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2016-10-20 18:33+0200\n"
+"POT-Creation-Date: 2016-10-25 21:49+0200\n"
 "PO-Revision-Date: 2016-07-18\n"
 "Last-Translator: Skia <skia@libskia.so>\n"
 "Language-Team: AE info <ae.info@utbm.fr>\n"
@@ -17,8 +17,8 @@ msgstr ""
 "Plural-Forms: nplurals=2; plural=(n > 1);\n"
 
 #: accounting/models.py:36 accounting/models.py:55 accounting/models.py:82
-#: accounting/models.py:141 club/models.py:19 counter/models.py:72
-#: counter/models.py:97 counter/models.py:132 launderette/models.py:15
+#: accounting/models.py:141 club/models.py:19 counter/models.py:70
+#: counter/models.py:95 counter/models.py:130 launderette/models.py:15
 #: launderette/models.py:60 launderette/models.py:85
 msgid "name"
 msgstr "nom"
@@ -64,7 +64,7 @@ msgid "account number"
 msgstr "numero de compte"
 
 #: accounting/models.py:58 accounting/models.py:83 club/models.py:145
-#: counter/models.py:106 counter/models.py:133
+#: counter/models.py:104 counter/models.py:131
 msgid "club"
 msgstr "club"
 
@@ -85,12 +85,12 @@ msgstr "Compte club"
 msgid "%(club_account)s on %(bank_account)s"
 msgstr "%(club_account)s sur %(bank_account)s"
 
-#: accounting/models.py:139 club/models.py:146 counter/models.py:381
+#: accounting/models.py:139 club/models.py:146 counter/models.py:380
 #: launderette/models.py:122
 msgid "start date"
 msgstr "date de début"
 
-#: accounting/models.py:140 club/models.py:147 counter/models.py:382
+#: accounting/models.py:140 club/models.py:147 counter/models.py:381
 msgid "end date"
 msgstr "date de fin"
 
@@ -103,7 +103,7 @@ msgid "club account"
 msgstr "compte club"
 
 #: accounting/models.py:144 accounting/models.py:190 counter/models.py:28
-#: counter/models.py:236
+#: counter/models.py:234
 msgid "amount"
 msgstr "montant"
 
@@ -124,16 +124,16 @@ msgid "journal"
 msgstr "classeur"
 
 #: accounting/models.py:191 core/models.py:498 core/models.py:776
-#: counter/models.py:239 counter/models.py:282 counter/models.py:398
+#: counter/models.py:237 counter/models.py:280 counter/models.py:397
 #: eboutic/models.py:15 eboutic/models.py:48
 msgid "date"
 msgstr "date"
 
-#: accounting/models.py:192 counter/models.py:399
+#: accounting/models.py:192 counter/models.py:398
 msgid "comment"
 msgstr "commentaire"
 
-#: accounting/models.py:193 counter/models.py:240 counter/models.py:283
+#: accounting/models.py:193 counter/models.py:238 counter/models.py:281
 #: subscription/models.py:57
 msgid "payment method"
 msgstr "méthode de paiement"
@@ -159,7 +159,7 @@ msgid "accounting type"
 msgstr "type comptable"
 
 #: accounting/models.py:202 accounting/models.py:296 accounting/models.py:322
-#: accounting/models.py:345 counter/models.py:274
+#: accounting/models.py:345 counter/models.py:272
 msgid "label"
 msgstr "intitulé"
 
@@ -232,7 +232,7 @@ msgstr ""
 "Vous devez fournir soit un type comptable simplifié ou un type comptable "
 "standard"
 
-#: accounting/models.py:291 counter/models.py:101
+#: accounting/models.py:291 counter/models.py:99
 msgid "code"
 msgstr "code"
 
@@ -590,7 +590,7 @@ msgstr "Vous ne pouvez pas faire de boucles dans les clubs"
 msgid "A club with that unix_name already exists"
 msgstr "Un club avec ce nom UNIX existe déjà."
 
-#: club/models.py:144 counter/models.py:379 counter/models.py:396
+#: club/models.py:144 counter/models.py:378 counter/models.py:395
 #: eboutic/models.py:14 eboutic/models.py:47 launderette/models.py:89
 #: launderette/models.py:126
 msgid "user"
@@ -600,8 +600,8 @@ msgstr "nom d'utilisateur"
 msgid "role"
 msgstr "rôle"
 
-#: club/models.py:150 core/models.py:33 counter/models.py:73
-#: counter/models.py:98
+#: club/models.py:150 core/models.py:33 counter/models.py:71
+#: counter/models.py:96
 msgid "description"
 msgstr "description"
 
@@ -1979,67 +1979,67 @@ msgstr "clients"
 msgid "Not enough money"
 msgstr "Solde insuffisant"
 
-#: counter/models.py:77 counter/models.py:99
+#: counter/models.py:75 counter/models.py:97
 msgid "product type"
 msgstr "type du produit"
 
-#: counter/models.py:102
+#: counter/models.py:100
 msgid "purchase price"
 msgstr "prix d'achat"
 
-#: counter/models.py:103
+#: counter/models.py:101
 msgid "selling price"
 msgstr "prix de vente"
 
-#: counter/models.py:104
+#: counter/models.py:102
 msgid "special selling price"
 msgstr "prix de vente spécial"
 
-#: counter/models.py:105
+#: counter/models.py:103
 msgid "icon"
 msgstr "icône"
 
-#: counter/models.py:107
+#: counter/models.py:105
 msgid "limit age"
 msgstr "âge limite"
 
-#: counter/models.py:108
+#: counter/models.py:106
 msgid "tray price"
 msgstr "prix plateau"
 
-#: counter/models.py:109
+#: counter/models.py:107
 msgid "parent product"
 msgstr "produit parent"
 
-#: counter/models.py:111
+#: counter/models.py:109
 msgid "buying groups"
 msgstr "groupe d'achat"
 
-#: counter/models.py:112
+#: counter/models.py:110
 msgid "archived"
 msgstr "archivé"
 
-#: counter/models.py:115 counter/models.py:479
+#: counter/models.py:113 counter/models.py:478
 msgid "product"
 msgstr "produit"
 
-#: counter/models.py:134
+#: counter/models.py:132
 msgid "products"
 msgstr "produits"
 
-#: counter/models.py:135
+#: counter/models.py:133
 msgid "counter type"
 msgstr "type de comptoir"
 
-#: counter/models.py:137
+#: counter/models.py:135
 msgid "Bar"
 msgstr "Bar"
 
-#: counter/models.py:137
+#: counter/models.py:135
 msgid "Office"
 msgstr "Bureau"
 
-#: counter/models.py:137 counter/templates/counter/counter_list.jinja:11
+#: counter/models.py:135 counter/templates/counter/counter_list.jinja:11
 #: eboutic/templates/eboutic/eboutic_main.jinja:4
 #: eboutic/templates/eboutic/eboutic_main.jinja:24
 #: eboutic/templates/eboutic/eboutic_makecommand.jinja:8
@@ -2048,58 +2048,62 @@ msgstr "Bureau"
 msgid "Eboutic"
 msgstr "Eboutic"
 
-#: counter/models.py:138
+#: counter/models.py:136
 msgid "sellers"
 msgstr "vendeurs"
 
-#: counter/models.py:141 launderette/models.py:125
+#: counter/models.py:139 launderette/models.py:125
 msgid "token"
 msgstr "jeton"
 
-#: counter/models.py:144 counter/models.py:380 counter/models.py:397
+#: counter/models.py:142 counter/models.py:379 counter/models.py:396
 #: launderette/models.py:16
 msgid "counter"
 msgstr "comptoir"
 
-#: counter/models.py:242
+#: counter/models.py:240
 msgid "bank"
 msgstr "banque"
 
-#: counter/models.py:244 counter/models.py:285
+#: counter/models.py:242 counter/models.py:283
 msgid "is validated"
 msgstr "est validé"
 
-#: counter/models.py:247
+#: counter/models.py:245
 msgid "refilling"
 msgstr "rechargement"
 
-#: counter/models.py:278 eboutic/models.py:103
+#: counter/models.py:276 eboutic/models.py:103
 msgid "unit price"
 msgstr "prix unitaire"
 
-#: counter/models.py:279 counter/models.py:469 eboutic/models.py:104
+#: counter/models.py:277 counter/models.py:468 eboutic/models.py:104
 msgid "quantity"
 msgstr "quantité"
 
-#: counter/models.py:284
+#: counter/models.py:282
 msgid "Sith account"
 msgstr "Compte utilisateur"
 
-#: counter/models.py:284 sith/settings.py:283 sith/settings.py:288
+#: counter/models.py:282 sith/settings.py:283 sith/settings.py:288
 #: sith/settings.py:310
 msgid "Credit card"
 msgstr "Carte bancaire"
 
-#: counter/models.py:288
+#: counter/models.py:286
 msgid "selling"
 msgstr "vente"
 
-#: counter/models.py:306
+#: counter/models.py:304
+msgid "Unknown event"
+msgstr "Évènement inconnu"
+
+#: counter/models.py:305
 #, python-format
 msgid "Eticket bought for the event %(event)s"
 msgstr "Achat d'eticket pour l'évènement %(event)s"
 
-#: counter/models.py:308 counter/models.py:320
+#: counter/models.py:307 counter/models.py:319
 #, python-format
 msgid ""
 "You bought an eticket for the event %(event)s.\n"
@@ -2107,53 +2111,52 @@ msgid ""
 msgstr ""
 "Vous avez acheté un eticket pour l'évènement %(event)s.\n"
 "Vous pouvez le télécharger en visitant cette page %(url)s"
-""
 
-#: counter/models.py:383
+#: counter/models.py:382
 msgid "last activity date"
 msgstr "dernière activité"
 
-#: counter/models.py:386
+#: counter/models.py:385
 msgid "permanency"
 msgstr "permanence"
 
-#: counter/models.py:400
+#: counter/models.py:399
 msgid "emptied"
 msgstr "coffre vidée"
 
-#: counter/models.py:403
+#: counter/models.py:402
 msgid "cash register summary"
 msgstr "relevé de caisse"
 
-#: counter/models.py:467
+#: counter/models.py:466
 msgid "cash summary"
 msgstr "relevé"
 
-#: counter/models.py:468
+#: counter/models.py:467
 msgid "value"
 msgstr "valeur"
 
-#: counter/models.py:470
+#: counter/models.py:469
 msgid "check"
 msgstr "chèque"
 
-#: counter/models.py:473
+#: counter/models.py:472
 msgid "cash register summary item"
 msgstr "élément de relevé de caisse"
 
-#: counter/models.py:480
+#: counter/models.py:479
 msgid "banner"
 msgstr "bannière"
 
-#: counter/models.py:481
+#: counter/models.py:480
 msgid "event date"
 msgstr "date de l'événement"
 
-#: counter/models.py:482
+#: counter/models.py:481
 msgid "event title"
 msgstr "titre de l'événement"
 
-#: counter/models.py:483
+#: counter/models.py:482
 msgid "secret"
 msgstr "secret"