Trading error: 'AAPL'

Dear All,

i am running a python script to automate my trading, but I am getting the following errors for paper trade account:

2023-06-28 22:23:13,926 - DEBUG - https://data.alpaca.markets:443 “GET /v2/stocks/AAPL/bars?timeframe=1D&adjustment=raw&limit=2 HTTP/1.1” 200 160
2023-06-28 22:23:13,929 - ERROR - Trading error: ‘AAPL’
2023-06-28 22:23:14,116 - DEBUG - https://data.alpaca.markets:443 “GET /v2/stocks/AAPL/bars?timeframe=1D&adjustment=raw&limit=2 HTTP/1.1” 200 160
2023-06-28 22:23:14,119 - ERROR - Trading error: ‘AAPL’

Can you please help me to troubleshoot and fix this problem.

Regards, Uzair.