fix when all offline

server.py

@@ -120,13 +120,12 @@ def home():
     else:
         default_model_info = {
             'model': 'OFFLINE',
-            'processing': 0,
-            'queued': 0,
-
+            'processing': '-',
+            'queued': '-',
+            'context_size': '-',
         }
         default_estimated_wait_sec = 'OFFLINE'
 
-
     if len(config['analytics_tracking_code']):
         analytics_tracking_code = f"<script>\n{config['analytics_tracking_code']}\n</script>"
     else: