add try block in ble.py when reading data

ble.py

@@ -74,7 +74,10 @@ async def read_data(mac_address):
 def sensor_data_query(mac_list):
     result = []
     for mac in mac_list:
-        this_result = asyncio.run(read_data(mac))
+        try:
+            this_result = asyncio.run(read_data(mac))
+        except Exception as e:
+            print(f"Error reading BLE data - {e}")
         result.append({"name": mac, "temp": this_result[0], "humidity": this_result[1]})
     print(f"Data query complete - returning result")
     return result