diff --git a/site/plugins/admin/lang/af_ZA.json b/site/plugins/admin/lang/af_ZA.json
index 6567e272..95c8a291 100644
--- a/site/plugins/admin/lang/af_ZA.json
+++ b/site/plugins/admin/lang/af_ZA.json
@@ -18,6 +18,7 @@
   "admin_themes": "Themes",
   "admin_help": "Help",
   "admin_getting_help": "Getting Help",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "Logout",
   "admin_profile": "Profile",
   "admin_view_site": "View Site",
diff --git a/site/plugins/admin/lang/ar_SA.json b/site/plugins/admin/lang/ar_SA.json
index 675133c1..e820df8b 100644
--- a/site/plugins/admin/lang/ar_SA.json
+++ b/site/plugins/admin/lang/ar_SA.json
@@ -18,6 +18,7 @@
   "admin_themes": "الثيمات",
   "admin_help": "المساعدة",
   "admin_getting_help": "الحصول على مساعدة",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "تسجيل الخروج",
   "admin_profile": "الملفّ الشّخصي",
   "admin_view_site": "عرض الموقع",
diff --git a/site/plugins/admin/lang/ca_ES.json b/site/plugins/admin/lang/ca_ES.json
index 6567e272..95c8a291 100644
--- a/site/plugins/admin/lang/ca_ES.json
+++ b/site/plugins/admin/lang/ca_ES.json
@@ -18,6 +18,7 @@
   "admin_themes": "Themes",
   "admin_help": "Help",
   "admin_getting_help": "Getting Help",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "Logout",
   "admin_profile": "Profile",
   "admin_view_site": "View Site",
diff --git a/site/plugins/admin/lang/cs_CZ.json b/site/plugins/admin/lang/cs_CZ.json
index 1f5af307..de92636e 100644
--- a/site/plugins/admin/lang/cs_CZ.json
+++ b/site/plugins/admin/lang/cs_CZ.json
@@ -18,6 +18,7 @@
   "admin_themes": "Themes",
   "admin_help": "Help",
   "admin_getting_help": "Getting Help",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "Logout",
   "admin_profile": "Profile",
   "admin_view_site": "Zobrazit web",
diff --git a/site/plugins/admin/lang/da_DK.json b/site/plugins/admin/lang/da_DK.json
index 7ea6f775..2030ee36 100644
--- a/site/plugins/admin/lang/da_DK.json
+++ b/site/plugins/admin/lang/da_DK.json
@@ -18,6 +18,7 @@
   "admin_themes": "Temaer",
   "admin_help": "Hjælp",
   "admin_getting_help": "Få hjælp",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "Log ud",
   "admin_profile": "Profil",
   "admin_view_site": "Vis websted",
diff --git a/site/plugins/admin/lang/de_DE.json b/site/plugins/admin/lang/de_DE.json
index 5c93ed12..798b9361 100644
--- a/site/plugins/admin/lang/de_DE.json
+++ b/site/plugins/admin/lang/de_DE.json
@@ -18,6 +18,7 @@
   "admin_themes": "Themes",
   "admin_help": "Hilfe",
   "admin_getting_help": "Dokumentation",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "Ausloggen",
   "admin_profile": "Profil",
   "admin_view_site": "Seite ansehen",
diff --git a/site/plugins/admin/lang/el_GR.json b/site/plugins/admin/lang/el_GR.json
index 6567e272..95c8a291 100644
--- a/site/plugins/admin/lang/el_GR.json
+++ b/site/plugins/admin/lang/el_GR.json
@@ -18,6 +18,7 @@
   "admin_themes": "Themes",
   "admin_help": "Help",
   "admin_getting_help": "Getting Help",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "Logout",
   "admin_profile": "Profile",
   "admin_view_site": "View Site",
diff --git a/site/plugins/admin/lang/es_ES.json b/site/plugins/admin/lang/es_ES.json
index 6567e272..95c8a291 100644
--- a/site/plugins/admin/lang/es_ES.json
+++ b/site/plugins/admin/lang/es_ES.json
@@ -18,6 +18,7 @@
   "admin_themes": "Themes",
   "admin_help": "Help",
   "admin_getting_help": "Getting Help",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "Logout",
   "admin_profile": "Profile",
   "admin_view_site": "View Site",
diff --git a/site/plugins/admin/lang/fi_FI.json b/site/plugins/admin/lang/fi_FI.json
index 6567e272..95c8a291 100644
--- a/site/plugins/admin/lang/fi_FI.json
+++ b/site/plugins/admin/lang/fi_FI.json
@@ -18,6 +18,7 @@
   "admin_themes": "Themes",
   "admin_help": "Help",
   "admin_getting_help": "Getting Help",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "Logout",
   "admin_profile": "Profile",
   "admin_view_site": "View Site",
diff --git a/site/plugins/admin/lang/fr_FR.json b/site/plugins/admin/lang/fr_FR.json
index edf5e3ec..f062e7ca 100644
--- a/site/plugins/admin/lang/fr_FR.json
+++ b/site/plugins/admin/lang/fr_FR.json
@@ -18,6 +18,7 @@
   "admin_themes": "Thèmes",
   "admin_help": "Aide",
   "admin_getting_help": "Obtenir de l'aide",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "Déconnexion",
   "admin_profile": "Profil",
   "admin_view_site": "Voir le site",
diff --git a/site/plugins/admin/lang/he_IL.json b/site/plugins/admin/lang/he_IL.json
index 6567e272..95c8a291 100644
--- a/site/plugins/admin/lang/he_IL.json
+++ b/site/plugins/admin/lang/he_IL.json
@@ -18,6 +18,7 @@
   "admin_themes": "Themes",
   "admin_help": "Help",
   "admin_getting_help": "Getting Help",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "Logout",
   "admin_profile": "Profile",
   "admin_view_site": "View Site",
diff --git a/site/plugins/admin/lang/hr_HR.json b/site/plugins/admin/lang/hr_HR.json
index 7c966fca..b9762536 100644
--- a/site/plugins/admin/lang/hr_HR.json
+++ b/site/plugins/admin/lang/hr_HR.json
@@ -18,6 +18,7 @@
   "admin_themes": "Teme",
   "admin_help": "Pomoć",
   "admin_getting_help": "Getting Help",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "Odjava",
   "admin_profile": "Profil",
   "admin_view_site": "Vidi Sajt",
diff --git a/site/plugins/admin/lang/hu_HU.json b/site/plugins/admin/lang/hu_HU.json
index 2cc87d6f..a69c9f59 100644
--- a/site/plugins/admin/lang/hu_HU.json
+++ b/site/plugins/admin/lang/hu_HU.json
@@ -18,6 +18,7 @@
   "admin_themes": "Sablonok",
   "admin_help": "Segítség",
   "admin_getting_help": "Segítség",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "Kilépés",
   "admin_profile": "Profil",
   "admin_view_site": "Honlap megtekintése",
diff --git a/site/plugins/admin/lang/it_IT.json b/site/plugins/admin/lang/it_IT.json
index e574d286..053f8324 100644
--- a/site/plugins/admin/lang/it_IT.json
+++ b/site/plugins/admin/lang/it_IT.json
@@ -18,6 +18,7 @@
   "admin_themes": "Temi",
   "admin_help": "Aiuto",
   "admin_getting_help": "Ottenere aiuto",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "Disconnetti",
   "admin_profile": "Profilo",
   "admin_view_site": "Visualizza il sito",
diff --git a/site/plugins/admin/lang/ja_JP.json b/site/plugins/admin/lang/ja_JP.json
index 6567e272..95c8a291 100644
--- a/site/plugins/admin/lang/ja_JP.json
+++ b/site/plugins/admin/lang/ja_JP.json
@@ -18,6 +18,7 @@
   "admin_themes": "Themes",
   "admin_help": "Help",
   "admin_getting_help": "Getting Help",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "Logout",
   "admin_profile": "Profile",
   "admin_view_site": "View Site",
diff --git a/site/plugins/admin/lang/ko_KR.json b/site/plugins/admin/lang/ko_KR.json
index 6567e272..95c8a291 100644
--- a/site/plugins/admin/lang/ko_KR.json
+++ b/site/plugins/admin/lang/ko_KR.json
@@ -18,6 +18,7 @@
   "admin_themes": "Themes",
   "admin_help": "Help",
   "admin_getting_help": "Getting Help",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "Logout",
   "admin_profile": "Profile",
   "admin_view_site": "View Site",
diff --git a/site/plugins/admin/lang/nl_NL.json b/site/plugins/admin/lang/nl_NL.json
index 14a55320..efc6a44e 100644
--- a/site/plugins/admin/lang/nl_NL.json
+++ b/site/plugins/admin/lang/nl_NL.json
@@ -18,6 +18,7 @@
   "admin_themes": "Thema's",
   "admin_help": "Help",
   "admin_getting_help": "Help-informatie opvragen",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "Uitloggen",
   "admin_profile": "Profiel",
   "admin_view_site": "Bekijk site",
diff --git a/site/plugins/admin/lang/no_NO.json b/site/plugins/admin/lang/no_NO.json
index 6567e272..95c8a291 100644
--- a/site/plugins/admin/lang/no_NO.json
+++ b/site/plugins/admin/lang/no_NO.json
@@ -18,6 +18,7 @@
   "admin_themes": "Themes",
   "admin_help": "Help",
   "admin_getting_help": "Getting Help",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "Logout",
   "admin_profile": "Profile",
   "admin_view_site": "View Site",
diff --git a/site/plugins/admin/lang/pl_PL.json b/site/plugins/admin/lang/pl_PL.json
index cc8c08f5..6dd5120d 100644
--- a/site/plugins/admin/lang/pl_PL.json
+++ b/site/plugins/admin/lang/pl_PL.json
@@ -18,6 +18,7 @@
   "admin_themes": "Motywy",
   "admin_help": "Pomoc",
   "admin_getting_help": "Pomoc",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "Wyloguj",
   "admin_profile": "Profil",
   "admin_view_site": "Wyświetl stronę",
diff --git a/site/plugins/admin/lang/pt_BR.json b/site/plugins/admin/lang/pt_BR.json
index 8cd41aa7..814f2cc4 100644
--- a/site/plugins/admin/lang/pt_BR.json
+++ b/site/plugins/admin/lang/pt_BR.json
@@ -18,6 +18,7 @@
   "admin_themes": "Temas",
   "admin_help": "Help",
   "admin_getting_help": "Getting Help",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "Logout",
   "admin_profile": "Profile",
   "admin_view_site": "View Site",
diff --git a/site/plugins/admin/lang/pt_PT.json b/site/plugins/admin/lang/pt_PT.json
index 6567e272..95c8a291 100644
--- a/site/plugins/admin/lang/pt_PT.json
+++ b/site/plugins/admin/lang/pt_PT.json
@@ -18,6 +18,7 @@
   "admin_themes": "Themes",
   "admin_help": "Help",
   "admin_getting_help": "Getting Help",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "Logout",
   "admin_profile": "Profile",
   "admin_view_site": "View Site",
diff --git a/site/plugins/admin/lang/ro_RO.json b/site/plugins/admin/lang/ro_RO.json
index 6567e272..95c8a291 100644
--- a/site/plugins/admin/lang/ro_RO.json
+++ b/site/plugins/admin/lang/ro_RO.json
@@ -18,6 +18,7 @@
   "admin_themes": "Themes",
   "admin_help": "Help",
   "admin_getting_help": "Getting Help",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "Logout",
   "admin_profile": "Profile",
   "admin_view_site": "View Site",
diff --git a/site/plugins/admin/lang/ru_RU.json b/site/plugins/admin/lang/ru_RU.json
index cd00962d..86ae9324 100644
--- a/site/plugins/admin/lang/ru_RU.json
+++ b/site/plugins/admin/lang/ru_RU.json
@@ -18,6 +18,7 @@
   "admin_themes": "Темы",
   "admin_help": "Помощь",
   "admin_getting_help": "Документация",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "Выход",
   "admin_profile": "Профайл",
   "admin_view_site": "Просмотреть Сайт",
diff --git a/site/plugins/admin/lang/sr_SP.json b/site/plugins/admin/lang/sr_SP.json
index 6567e272..95c8a291 100644
--- a/site/plugins/admin/lang/sr_SP.json
+++ b/site/plugins/admin/lang/sr_SP.json
@@ -18,6 +18,7 @@
   "admin_themes": "Themes",
   "admin_help": "Help",
   "admin_getting_help": "Getting Help",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "Logout",
   "admin_profile": "Profile",
   "admin_view_site": "View Site",
diff --git a/site/plugins/admin/lang/sv_SE.json b/site/plugins/admin/lang/sv_SE.json
index 6567e272..95c8a291 100644
--- a/site/plugins/admin/lang/sv_SE.json
+++ b/site/plugins/admin/lang/sv_SE.json
@@ -18,6 +18,7 @@
   "admin_themes": "Themes",
   "admin_help": "Help",
   "admin_getting_help": "Getting Help",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "Logout",
   "admin_profile": "Profile",
   "admin_view_site": "View Site",
diff --git a/site/plugins/admin/lang/tr_TR.json b/site/plugins/admin/lang/tr_TR.json
index 3bcb06ff..03e4af9e 100644
--- a/site/plugins/admin/lang/tr_TR.json
+++ b/site/plugins/admin/lang/tr_TR.json
@@ -18,6 +18,7 @@
   "admin_themes": "Temalar",
   "admin_help": "Yardım et",
   "admin_getting_help": "Yardım Alma",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "Çıkış Yap",
   "admin_profile": "Profil",
   "admin_view_site": "Siteyi Görüntüle",
diff --git a/site/plugins/admin/lang/uk_UA.json b/site/plugins/admin/lang/uk_UA.json
index 1661acc1..ab4e3242 100644
--- a/site/plugins/admin/lang/uk_UA.json
+++ b/site/plugins/admin/lang/uk_UA.json
@@ -18,6 +18,7 @@
   "admin_themes": "Тема оформлення",
   "admin_help": "Допомога",
   "admin_getting_help": "Отримати довідку",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "Вихід",
   "admin_profile": "Профіль",
   "admin_view_site": "Переглянути сайт",
diff --git a/site/plugins/admin/lang/vi_VN.json b/site/plugins/admin/lang/vi_VN.json
index 6567e272..95c8a291 100644
--- a/site/plugins/admin/lang/vi_VN.json
+++ b/site/plugins/admin/lang/vi_VN.json
@@ -18,6 +18,7 @@
   "admin_themes": "Themes",
   "admin_help": "Help",
   "admin_getting_help": "Getting Help",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "Logout",
   "admin_profile": "Profile",
   "admin_view_site": "View Site",
diff --git a/site/plugins/admin/lang/zh_CN.json b/site/plugins/admin/lang/zh_CN.json
index 6567e272..95c8a291 100644
--- a/site/plugins/admin/lang/zh_CN.json
+++ b/site/plugins/admin/lang/zh_CN.json
@@ -18,6 +18,7 @@
   "admin_themes": "Themes",
   "admin_help": "Help",
   "admin_getting_help": "Getting Help",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "Logout",
   "admin_profile": "Profile",
   "admin_view_site": "View Site",
diff --git a/site/plugins/admin/lang/zh_TW.json b/site/plugins/admin/lang/zh_TW.json
index 6567e272..95c8a291 100644
--- a/site/plugins/admin/lang/zh_TW.json
+++ b/site/plugins/admin/lang/zh_TW.json
@@ -18,6 +18,7 @@
   "admin_themes": "Themes",
   "admin_help": "Help",
   "admin_getting_help": "Getting Help",
+  "admin_message_json_invalid": "Invalid JSON",
   "admin_logout": "Logout",
   "admin_profile": "Profile",
   "admin_view_site": "View Site",