URL monitor errors in 11.51

After upgrading to 11.51, URL monitors are receiving the following error: 

 

Status Summary: Internal error: java.lang.NoSuchMethodError: org.apache.commons.httpclient.ContentLengthInputStream.(Ljava/io/InputStream;J)V2018-10-29 06:33:00,635 [test.org(1950468585/1) ] (ApacheHttpUtils.java:501) ERROR - problem while sending data to URL: https://test.org error: URL: https://test.org, host: test.org, port: 80, UsingProxy: false, isHTTPS(SSL): true, org.apache.commons.httpclient.HttpRecoverableException: java.net.SocketException: Connection reset, currentRetry: 02018-10-29 08:00:22,023 [1 - Broker Health Check(1950471952/1) ] (ApacheHttpUtils.java:501) ERROR - problem while sending data to URL: http://test/Healthcheck error: URL: http://test:7080/soap/Healthcheck, host: test, port: 7080, UsingProxy: false, isHTTPS(SSL): false, java.net.ConnectException: Connection timed out: connect, currentRetry: 0