diff --git a/ar/backend.php b/ar/backend.php
index 8649d14..47fffe6 100644
--- a/ar/backend.php
+++ b/ar/backend.php
@@ -216,3 +216,5 @@ $backend_tl['object_text_original_md'] = 'Originaltext aus museum-digital';
 $backend_tl['md_object_either_from_md'] = 'Entweder: Sie verknüpfen das Thema mit einem Objekt aus museum-digital ...';
 $backend_tl['md_object_local_object'] = 'Oder: Sie geben ein Objekt, welches nicht in museum-digital vertreten ist ein ...';
 $backend_tl['image_uploader'] = 'Image uploader';
+$backend_tl['username_too_short'] = 'Username must be at least 5 characters long';
+$backend_tl['password_too_short'] = 'A password needs to be at least 8 characters long';
diff --git a/de/backend.php b/de/backend.php
index 89c3462..53b2d80 100644
--- a/de/backend.php
+++ b/de/backend.php
@@ -219,3 +219,6 @@ $backend_tl['md_object_local_object'] = 'Oder: Sie geben ein Objekt, welches nic
 $backend_tl['163'] = '';
 $backend_tl['image_uploader'] = 'Uploader für Abbildungen';
 $backend_tl['215'] = '';
+$backend_tl['username_too_short'] = 'Der Anmeldename muss mindestens fünf Zeichen lang sein';
+$backend_tl['password_too_short'] = 'Passworte müssen mindestens 8 Zeichen lang sein';
+$backend_tl['217'] = '';
diff --git a/en/backend.php b/en/backend.php
index b65adae..1201cfe 100644
--- a/en/backend.php
+++ b/en/backend.php
@@ -216,3 +216,5 @@ $backend_tl['object_text_original_md'] = 'Original text from museum-digital	';
 $backend_tl['md_object_either_from_md'] = 'Either you link an object from museum-digital ...';
 $backend_tl['md_object_local_object'] = 'Or you enter an object, which is not present in museum-digital ...';
 $backend_tl['image_uploader'] = 'Image uploader';
+$backend_tl['username_too_short'] = 'Username must be at least 5 characters long';
+$backend_tl['password_too_short'] = 'A password needs to be at least 8 characters long';
diff --git a/hu/backend.php b/hu/backend.php
index 3611882..d7d4045 100644
--- a/hu/backend.php
+++ b/hu/backend.php
@@ -216,3 +216,5 @@ $backend_tl['object_text_original_md'] = 'Eredeti szöveg a MúzeumDigitár-ból
 $backend_tl['md_object_either_from_md'] = 'Automatikus hozzáadás a MúzeumDigitár publikált tárgyaiból';
 $backend_tl['md_object_local_object'] = 'Manuális hozzáadás (ha a tárgy nem szerepel a MúzeumDigitár publikus oldalán)';
 $backend_tl['image_uploader'] = 'Image uploader';
+$backend_tl['username_too_short'] = 'Username must be at least 5 characters long';
+$backend_tl['password_too_short'] = 'A password needs to be at least 8 characters long';
diff --git a/id/backend.php b/id/backend.php
index 4f6caee..924e4cc 100644
--- a/id/backend.php
+++ b/id/backend.php
@@ -217,3 +217,5 @@ $backend_tl['object_text_original_md'] = 'Originaltext aus museum-digital';
 $backend_tl['md_object_either_from_md'] = 'Entweder: Sie verknüpfen das Thema mit einem Objekt aus museum-digital ...';
 $backend_tl['md_object_local_object'] = 'Oder: Sie geben ein Objekt, welches nicht in museum-digital vertreten ist ein ...';
 $backend_tl['image_uploader'] = 'Image uploader';
+$backend_tl['username_too_short'] = 'Username must be at least 5 characters long';
+$backend_tl['password_too_short'] = 'A password needs to be at least 8 characters long';
diff --git a/it/backend.php b/it/backend.php
index 4778721..863f0a3 100644
--- a/it/backend.php
+++ b/it/backend.php
@@ -216,3 +216,5 @@ $backend_tl['object_text_original_md'] = 'Originaltext aus museum-digital';
 $backend_tl['md_object_either_from_md'] = 'Entweder: Sie verknüpfen das Thema mit einem Objekt aus museum-digital ...';
 $backend_tl['md_object_local_object'] = 'Oder: Sie geben ein Objekt, welches nicht in museum-digital vertreten ist ein ...';
 $backend_tl['image_uploader'] = 'Image uploader';
+$backend_tl['username_too_short'] = 'Username must be at least 5 characters long';
+$backend_tl['password_too_short'] = 'A password needs to be at least 8 characters long';
diff --git a/pl/backend.php b/pl/backend.php
index 4778721..863f0a3 100644
--- a/pl/backend.php
+++ b/pl/backend.php
@@ -216,3 +216,5 @@ $backend_tl['object_text_original_md'] = 'Originaltext aus museum-digital';
 $backend_tl['md_object_either_from_md'] = 'Entweder: Sie verknüpfen das Thema mit einem Objekt aus museum-digital ...';
 $backend_tl['md_object_local_object'] = 'Oder: Sie geben ein Objekt, welches nicht in museum-digital vertreten ist ein ...';
 $backend_tl['image_uploader'] = 'Image uploader';
+$backend_tl['username_too_short'] = 'Username must be at least 5 characters long';
+$backend_tl['password_too_short'] = 'A password needs to be at least 8 characters long';
diff --git a/pt/backend.php b/pt/backend.php
index 4778721..863f0a3 100644
--- a/pt/backend.php
+++ b/pt/backend.php
@@ -216,3 +216,5 @@ $backend_tl['object_text_original_md'] = 'Originaltext aus museum-digital';
 $backend_tl['md_object_either_from_md'] = 'Entweder: Sie verknüpfen das Thema mit einem Objekt aus museum-digital ...';
 $backend_tl['md_object_local_object'] = 'Oder: Sie geben ein Objekt, welches nicht in museum-digital vertreten ist ein ...';
 $backend_tl['image_uploader'] = 'Image uploader';
+$backend_tl['username_too_short'] = 'Username must be at least 5 characters long';
+$backend_tl['password_too_short'] = 'A password needs to be at least 8 characters long';
diff --git a/tl/backend.php b/tl/backend.php
index 4778721..863f0a3 100644
--- a/tl/backend.php
+++ b/tl/backend.php
@@ -216,3 +216,5 @@ $backend_tl['object_text_original_md'] = 'Originaltext aus museum-digital';
 $backend_tl['md_object_either_from_md'] = 'Entweder: Sie verknüpfen das Thema mit einem Objekt aus museum-digital ...';
 $backend_tl['md_object_local_object'] = 'Oder: Sie geben ein Objekt, welches nicht in museum-digital vertreten ist ein ...';
 $backend_tl['image_uploader'] = 'Image uploader';
+$backend_tl['username_too_short'] = 'Username must be at least 5 characters long';
+$backend_tl['password_too_short'] = 'A password needs to be at least 8 characters long';