openconnect-gui issue solution-seeking：Authentication error; cannot obtain cookie

[Gongxin (AMS)]

Hi,
please i need some guidance and help with a OpenConnect-GUI issue. I'm using OpenConnect-GUI for Windows.
Now, I'm getting an error message " Authentication error; cannot obtain cookie ". 
Uninstalling and Reinstalling the OpenConnect didn't help at all. 
Is there any way to fix this issue? Thanks.
Best regards
gongxin

The fail log as below:
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2020-12-10 12:11:35 | 35a8 | POST https://vpn.stc.com.bh/
2020-12-10 12:11:35 | 35a8 | Attempting to connect to server *.*.*.*:443
2020-12-10 12:11:35 | 35a8 | Connected to *.*.*.*:443
2020-12-10 12:11:35 | 35a8 | There was a non-CA certificate in the trusted list: OU=Copyright (c) 1997 Microsoft Corp.,OU=Microsoft Corporation,CN=Microsoft Root Authority.
2020-12-10 12:11:35 | 35a8 | There was a non-CA certificate in the trusted list: C=US,O=MSFT,CN=Microsoft Authenticode(tm) Root Authority.
2020-12-10 12:11:35 | 35a8 | There was a non-CA certificate in the trusted list: CN=Root Agency.
2020-12-10 12:11:35 | 35a8 | SSL negotiation with vpn.stc.com.bh
2020-12-10 12:11:36 | 35a8 | Connected to HTTPS on vpn.stc.com.bh
2020-12-10 12:11:37 | 35a8 | Got HTTP response: HTTP/1.1 200 OK
2020-12-10 12:11:37 | 35a8 | Content-Type: text/html; charset=utf-8
2020-12-10 12:11:37 | 35a8 | Transfer-Encoding: chunked
2020-12-10 12:11:37 | 35a8 | Cache-Control: no-cache
2020-12-10 12:11:37 | 35a8 | Pragma: no-cache
2020-12-10 12:11:37 | 35a8 | Connection: Keep-Alive
2020-12-10 12:11:37 | 35a8 | Date: Thu, 10 Dec 2020 06:41:32 GMT
2020-12-10 12:11:37 | 35a8 | X-Frame-Options: SAMEORIGIN
2020-12-10 12:11:37 | 35a8 | Strict-Transport-Security: max-age=31536000; includeSubDomains
2020-12-10 12:11:37 | 35a8 | X-Aggregate-Auth: 1
2020-12-10 12:11:37 | 35a8 | HTTP body chunked (-2)
2020-12-10 12:11:37 | 35a8 | XML POST enabled
2020-12-10 12:11:37 | 35a8 | Please enter your username and password.
2020-12-10 12:11:42 | 35a8 | Saving group: SAS-VPN
2020-12-10 12:11:42 | 35a8 | POST https://vpn.stc.com.bh/
2020-12-10 12:11:42 | 35a8 | Got HTTP response: HTTP/1.1 200 OK
2020-12-10 12:11:42 | 35a8 | Content-Type: text/html; charset=utf-8
2020-12-10 12:11:42 | 35a8 | Transfer-Encoding: chunked
2020-12-10 12:11:42 | 35a8 | Cache-Control: no-cache
2020-12-10 12:11:42 | 35a8 | Pragma: no-cache
2020-12-10 12:11:42 | 35a8 | Connection: Keep-Alive
2020-12-10 12:11:42 | 35a8 | Date: Thu, 10 Dec 2020 06:41:38 GMT
2020-12-10 12:11:42 | 35a8 | X-Frame-Options: SAMEORIGIN
2020-12-10 12:11:42 | 35a8 | Strict-Transport-Security: max-age=31536000; includeSubDomains
2020-12-10 12:11:42 | 35a8 | X-Aggregate-Auth: 1
2020-12-10 12:11:42 | 35a8 | HTTP body chunked (-2)
2020-12-10 12:11:42 | 35a8 | XML POST enabled
2020-12-10 12:11:42 | 35a8 | Please enter your username and password.
2020-12-10 12:11:42 | 35a8 | Select form: group_list
2020-12-10 12:11:42 | 35a8 | Text form: username
2020-12-10 12:11:42 | 35a8 | Password form: password
2020-12-10 12:11:56 | 35a8 | Password form: secondary_password
2020-12-10 12:12:09 | 35a8 | POST https://vpn.stc.com.bh/
2020-12-10 12:12:09 | 35a8 | Got HTTP response: HTTP/1.1 200 OK
2020-12-10 12:12:09 | 35a8 | Content-Type: text/html; charset=utf-8
2020-12-10 12:12:09 | 35a8 | Transfer-Encoding: chunked
2020-12-10 12:12:09 | 35a8 | Cache-Control: no-cache
2020-12-10 12:12:09 | 35a8 | Pragma: no-cache
2020-12-10 12:12:09 | 35a8 | Connection: Keep-Alive
2020-12-10 12:12:09 | 35a8 | Date: Thu, 10 Dec 2020 06:42:05 GMT
2020-12-10 12:12:09 | 35a8 | X-Frame-Options: SAMEORIGIN
2020-12-10 12:12:09 | 35a8 | Strict-Transport-Security: max-age=31536000; includeSubDomains
2020-12-10 12:12:09 | 35a8 | X-Aggregate-Auth: 1
2020-12-10 12:12:09 | 35a8 | HTTP body chunked (-2)
2020-12-10 12:12:09 | 35a8 | Please enter your username and password.
2020-12-10 12:12:09 | 35a8 | Login failed.
2020-12-10 12:12:09 | 35a8 | Select form: group_list
2020-12-10 12:12:09 | 35a8 | Text form: username
2020-12-10 12:12:09 | 35a8 | Password form: password
2020-12-10 12:12:27 | 35a8 | Authentication error; cannot obtain cookie
2020-12-10 12:12:27 | 4cc4 | Disconnected