wrap camera blocks in try, allowing bot commands when camera is not available

Author: avivace

main.py

@@ -192,8 +192,13 @@ def handle_bot():
     Execute a bot command
     """
     bot = CoderBot.get_instance()
-    cam = Camera.get_instance()
-    motion = Motion.get_instance()
+    try:
+        cam = Camera.get_instance()
+        motion = Motion.get_instance()
+    except:
+        cam = None
+        motion = None
+    
     audio = Audio.get_instance()
 
     cmd = request.args.get('cmd')