when ever i launch the agent i am getting below error in the console:

Warning: no key algorithms provided; JENKINS-42959 disabled

[03/27/19 10:36:13] [SSH] Opening SSH connection to ​10.1.1.62​:22.

​10.1.1.62​

java.io.IOException: There was a problem while connecting to ​10.1.1.62​:22

        at com.trilead.ssh2.Connection.connect(Connection.java:834)

        at hudson.plugins.sshslaves.SSHLauncher.openConnection(SSHLauncher.java:1324)

        at hudson.plugins.sshslaves.SSHLauncher$2.call(SSHLauncher.java:831)

        at hudson.plugins.sshslaves.SSHLauncher$2.call(SSHLauncher.java:820)

        at java.util.concurrent.FutureTask.run(FutureTask.java:266)

        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

        at java.lang.Thread.run(Thread.java:745)

Caused by: java.net.UnknownHostException: ​10.1.1.62​

        at java.net.InetAddress.getAllByName0(InetAddress.java:1259)

        at java.net.InetAddress.getAllByName(InetAddress.java:1171)

        at java.net.InetAddress.getAllByName(InetAddress.java:1105)

        at java.net.InetAddress.getByName(InetAddress.java:1055)

        at com.trilead.ssh2.transport.TransportManager.createInetAddress(TransportManager.java:166)

        at com.trilead.ssh2.transport.TransportManager.establishConnection(TransportManager.java:366)

        at com.trilead.ssh2.transport.TransportManager.initialize(TransportManager.java:480)

        at com.trilead.ssh2.Connection.connect(Connection.java:774)

        ... 7 more

[03/27/19 10:36:13] Launch failed - cleaning up connection

[03/27/19 10:36:13] [SSH] Connection closed.