Failed to fetch real time 1-minute bar

Hello,

I have a python code to fetch real time 1-minute bar from my Alpaca account. My account is AlgoTrader plus. However, I always get following error after running my python codes. After getting the frist 20 bars, then it stuck there and always showing No New data available. Please help. Thanks.

Starting live deployment of the mean reversion strategy for AAPL
Fetched 20 bars.
2025-02-14 06:46:00 | Price: 45.80 | Mean: 44.67 | Std: 0.92 | Signal: -1
Fetched 20 bars.
No new data available. Waiting for the next bar…
Fetched 20 bars.
No new data available. Waiting for the next bar…
Fetched 20 bars.