FIX: Don't raise error when trying to download avatar from URL.

app/jobs/regular/download_avatar_from_url.rb

@@ -12,7 +12,15 @@ module Jobs
 
       return unless user = User.find_by(id: user_id)
 
-      UserAvatar.import_url_for_user(url, user, override_gravatar: args[:override_gravatar])
+      begin
+        UserAvatar.import_url_for_user(
+          '/assets/vorablesen/placeholder-user-ed74bdf68223d030da1b7ddc44f59faf9c5a184388c94aff91632d5bf166a9e5.png',
+          user,
+          override_gravatar: args[:override_gravatar]
+        )
+      rescue Discourse::InvalidParameters => e
+        raise e unless e.message == 'url'
+      end
     end
 
   end