Fix update states in scanning context thread

src/listener_context.py

@@ -40,6 +40,7 @@ def scan_context_thread():
         time_now = int(time.time())
         reserve_time = False
         while status_id is None or stop_thread_scan is None:
+            states = read_states()
             fail_limit = Counter()
             status_id = states.get('last_thread_id')
             stop_thread_scan = states.get('stop_thread_scan')