FTP can't show the lowest layer file

. 2020-09-29 16:07:50.008 Session upkeep
. 2020-09-29 16:07:50.416 Changing directory to "/XXXXXXXXXX".
> 2020-09-29 16:07:50.418 CWD /XXXXXXXXXX
< 2020-09-29 16:07:50.458 250 CWD command successful.
. 2020-09-29 16:07:50.459 Got reply 1 to the command 16
. 2020-09-29 16:07:50.459 Getting current directory name.
> 2020-09-29 16:07:50.459 PWD
< 2020-09-29 16:07:50.502 257 "/XXXXXXXXXX" is current directory.
. 2020-09-29 16:07:50.502 Got reply 1 to the command 16
. 2020-09-29 16:07:50.502 Retrieving directory listing...
> 2020-09-29 16:07:50.502 TYPE A
< 2020-09-29 16:07:50.545 200 Type set to A.
> 2020-09-29 16:07:50.545 PASV
< 2020-09-29 16:07:50.929 227 Entering Passive Mode (XXXXXXXXXX).
. 2020-09-29 16:07:50.930 Error retrieving server address, cannot test if address is routable
> 2020-09-29 16:07:50.930 LIST -a
. 2020-09-29 16:07:50.930 Connecting to XXXXXXXXXX ...
< 2020-09-29 16:07:51.020 150 Opening ASCII mode data connection.
. 2020-09-29 16:07:51.025 HTTP proxy command: CONNECT XXXXXXXXXX HTTP/1.1

. 2020-09-29 16:07:51.025 Host: XXXXXXXXXX

. 2020-09-29 16:07:51.025 Authorization: Basic cnBjaHVuLm9nY2lvOiVOVEE0UkkjNg==

. 2020-09-29 16:07:51.025 Proxy-Authorization: Basic cnBjaHVuLm9nY2lvOiVOVEE0UkkjNg==

. 2020-09-29 16:07:51.025

. 2020-09-29 16:07:51.025 Connection with proxy established, performing handshake...
< 2020-09-29 16:07:51.131 226 Transfer complete.
. 2020-09-29 16:07:51.137 HTTP proxy response: HTTP/1.1 200 OK
. 2020-09-29 16:07:51.138 HTTP proxy headers:

. 2020-09-29 16:07:51.138 Date: Tue, 29 Sep 2020 08:07:51 GMT

. 2020-09-29 16:07:51.138 Server: P20

. 2020-09-29 16:07:51.138

. 2020-09-29 16:07:51.138 Data connection closed
. 2020-09-29 16:07:51.138 <Empty directory listing>
. 2020-09-29 16:07:51.138 Directory listing successful
. 2020-09-29 16:07:51.138 Got reply 1 to the command 2
. 2020-09-29 16:07:51.138 ..;D;0;1899-12-30T08:00:00.000Z;0;"" [0];"" [0];---------;0