gateway error

[Silentely]

hey, I plan to ssh on one the server through a self-hosted tabby-web with a gateway.

tabby-web ssh displays is:

 SSH  Connecting to XX.XX.XX
 SSH  Host key fingerprint:
 SSH   ecdsa-sha2-nistp256  XXXXXXXXXXXXbW+1M= 
 SSH  Loading private key
 X  All configured authentication methods failed

the gateway output log is:

INFO:server:Token auth enabled
INFO:GatewayServer:Listening on 0.0.0.0:9000
INFO:websockets.server:server listening on 0.0.0.0:9000
INFO:websockets.server:connection open
INFO:GatewayWorker[192.168.16.1:52304]:New connection 192.168.16.1:52304
INFO:GatewayWorker[192.168.16.1:52304]:Connection established for 192.168.16.1:52304
INFO:GatewayWorker[192.168.16.1:52304]:Closing connection 192.168.16.1:52304
INFO:websockets.server:connection closed
INFO:websockets.server:connection open
INFO:GatewayWorker[192.168.16.1:53676]:New connection 192.168.16.1:53676
INFO:GatewayWorker[192.168.16.1:53676]:Connection established for 192.168.16.1:53676
INFO:GatewayWorker[192.168.16.1:53676]:Closing connection 192.168.16.1:53676
INFO:websockets.server:connection closed

SSH Log Display is:

Oct  1 13:34:41 ubuntu sshd[1754674]: Invalid user indicus from 1xx.xx.xx.x port 57926
Oct  1 13:34:41 ubuntu sshd[1754674]: Received disconnect from 1xx.xx.xx.x  port 57926:11: Bye Bye [preauth]
Oct  1 13:34:41 ubuntu sshd[1754674]: Disconnected from invalid user indicus 1xx.xx.xx.x  port 57926 [preauth]
Oct  1 13:36:12 ubuntu sshd[1754983]: Received disconnect from 1xx.xx.xx.x  port 44500:11:  [preauth]
Oct  1 13:36:12 ubuntu sshd[1754983]: Disconnected from authenticating user root 1xx.xx.xx.x port 44500 [preauth]
Oct  1 13:38:51 ubuntu sshd[1755306]: error: Received disconnect from 1xx.xx.xx.x port 17535:0:  [preauth]
Oct  1 13:38:51 ubuntu sshd[1755306]: Disconnected from authenticating user root 1xx.xx.xx.x port 17535 [preauth]

[untuned]

Invalid user indicus