fix: prevent error 500 on creation of new backoffice user

config/gravatar.php

@@ -1,6 +1,8 @@
 <?php
 
 return [
+    // Default configuration group for Gravatar
+    'default' => [
         // --- The default avatar size
         'size' => 80,
 
@@ -12,12 +14,22 @@ return [
         // (string) monsterid: a generated 'monster' with different colors, faces, etc.
         // (string) wavatar: generated faces with differing features and backgrounds.
         // (string) retro: awesome generated, 8-bit arcade-style pixelated faces.
-    'default' => 'identicon',
+        'fallback' => 'identicon',
+
+        // --- Whether to use HTTPS protocol
+        'secure' => false,
 
         // --- Set the type of avatars we allow to show
         // - g: suitable for display on all websites with any audience type.
         // - pg: may contain rude gestures, provocatively dressed individuals, the lesser swear words, or mild violence.
         // - r: may contain such things as harsh profanity, intense violence, nudity, or hard drug use.
         // - x: may contain hardcore sexual imagery or extremely disturbing violence.
-    'maxRating' => 'g',
+        'maximumRating' => 'g',
+
+        // --- Force default image to always display
+        'forceDefault' => false,
+
+        // --- Optional file extension appended to URL
+        'forceExtension' => 'jpg',
+    ]
 ];