Fix Null Being Taken Literally, Crashing Debug on Login (Simple-Stati…

…on#440)

There's probably an upcoming mirror for this, but whatever.

Content.Server/Administration/Managers/AdminManager.cs

@@ -315,7 +315,7 @@ private async void LoginAdminMaybe(ICommonSession session)
 
             _admins.Add(session, reg);
 
-            if (!session.ContentData()!.ExplicitlyDeadminned)
+            if (!session.ContentData()?.ExplicitlyDeadminned ?? false)
             {
                 reg.Data.Active = true;