putyy连接Ubuntu 树莓派服务器版时报认证失败

Couldn't agree a key exchange algorithm(availablecurve25519-sha256, curve25519-sha256@libssh.org, ecdh-sha2-nistp256, ecdh-sha2-nistp384, ecdh-sha2-nistp 521, diffie-hellman-grou16-sha512, diffie-hellman-group 18-sha5 12, diffie-hellman-group l4-sha256)

求回答！