paperwallet not working in real time

[yueismyname]

ninjabot git:(v0.3.6) ✗ go run examples/paperwallet/paperwallet.go
INFO[2024-04-16 15:30] [SETUP] Using Binance exchange
INFO[2024-04-16 15:30] [SETUP] Using paper wallet
INFO[2024-04-16 15:30] [SETUP] Initial Portfolio = 10000.000000 USDT
Chart available at http://localhost:8080
INFO[2024-04-16 15:30] [SETUP] preloading 22 candles for BNBUSDT-1m
INFO[2024-04-16 15:30] Bot started.
INFO[2024-04-16 15:30] Connecting to the exchange.
INFO[2024-04-16 15:30] Data feed connected.
ERRO[2024-04-16 15:30] dataFeedSubscription/start: EOF

the program just hang there, no more candles coming out,
Do anyone know what's going on?

[yueismyname]

Network Issue