Keep getting EikonError-Server Error

I keep getting EikonError-Server Error

The sample code and detailed message is here:

* code

sec_news = ek.get_news_headlines('005930.KS',

date_from='2019-10-06T09:00:00',

date_to='2019-10-07T18:00:00')

* error message

2021-09-13 14:16:26,909 P[2472] [MainThread 13200] Error code 500 | Server Error: {"code":500,"message":"unable to verify the first certificate","statusMessage":"Internal Server Error"} 2021-09-13 14:16:26,910 P[2472] [MainThread 13200] HTTP request failed: EikonError-Server Error: {"code":500,"message":"unable to verify the first certificate","statusMessage":"Internal Server Error"}

Can I get a help?

Thanks a lot.