Failed to start app Shinyproxy

Caused by: javax.ws.rs.ProcessingException: org.apache.http.conn.HttpHostConnectException: Connect to 127.0.0.1:2375 [/127.0.0.1] failed: Connection refused (Connection refused)
at org.glassfish.jersey.apache.connector.ApacheConnector.apply(ApacheConnector.java:488) ~[jersey-apache-connector-2.26-b03.jar!/:na]
at org.glassfish.jersey.apache.connector.ApacheConnector$1.run(ApacheConnector.java:498) ~[jersey-apache-connector-2.26-b03.jar!/:na]
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) ~[na:na]
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na]
at jersey.repackaged.com.google.common.util.concurrent.MoreExecutors$DirectExecutorService.execute(MoreExecutors.java:299) ~[jersey-guava-2.26-b03.jar!/:na]
at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:118) ~[na:na]
at jersey.repackaged.com.google.common.util.concurrent.AbstractListeningExecutorService.submit(AbstractListeningExecutorService.java:50) ~[jersey-guava-2.26-b03.jar!/:na]
at jersey.repackaged.com.google.common.util.concurrent.AbstractListeningExecutorService.submit(AbstractListeningExecutorService.java:37) ~[jersey-guava-2.26-b03.jar!/:na]
at org.glassfish.jersey.apache.connector.ApacheConnector.apply(ApacheConnector.java:494) ~[jersey-apache-connector-2.26-b03.jar!/:na]
at org.glassfish.jersey.client.ClientRuntime$2.run(ClientRuntime.java:181) ~[jersey-client-2.26-b03.jar!/:na]
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271) ~[jersey-common-2.26-b03.jar!/:na]
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267) ~[jersey-common-2.26-b03.jar!/:na]
at org.glassfish.jersey.internal.Errors.process(Errors.java:315) ~[jersey-common-2.26-b03.jar!/:na]
at org.glassfish.jersey.internal.Errors.process(Errors.java:297) ~[jersey-common-2.26-b03.jar!/:na]
at org.glassfish.jersey.internal.Errors.process(Errors.java:267) ~[jersey-common-2.26-b03.jar!/:na]
at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:303) ~[jersey-common-2.26-b03.jar!/:na]
at org.glassfish.jersey.client.ClientRuntime$3.run(ClientRuntime.java:209) ~[jersey-client-2.26-b03.jar!/:na]
… 5 common frames omitted
Caused by: org.apache.http.conn.HttpHostConnectException: Connect to 127.0.0.1:2375 [/127.0.0.1] failed: Connection refused (Connection refused)
at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:156) ~[httpclient-4.5.13.jar!/:4.5.13]
at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:376) ~[httpclient-4.5.13.jar!/:4.5.13]
at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:393) ~[httpclient-4.5.13.jar!/:4.5.13]
at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236) ~[httpclient-4.5.13.jar!/:4.5.13]
at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:186) ~[httpclient-4.5.13.jar!/:4.5.13]
at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89) ~[httpclient-4.5.13.jar!/:4.5.13]
at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110) ~[httpclient-4.5.13.jar!/:4.5.13]
at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185) ~[httpclient-4.5.13.jar!/:4.5.13]
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:72) ~[httpclient-4.5.13.jar!/:4.5.13]
at org.glassfish.jersey.apache.connector.ApacheConnector.apply(ApacheConnector.java:442) ~[jersey-apache-connector-2.26-b03.jar!/:na]
… 21 common frames omitted
Caused by: java.net.ConnectException: Connection refused (Connection refused)
at java.base/java.net.PlainSocketImpl.socketConnect(Native Method) ~[na:na]
at java.base/java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:412) ~[na:na]
at java.base/java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:255) ~[na:na]
at java.base/java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:237) ~[na:na]
at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[na:na]
at java.base/java.net.Socket.connect(Socket.java:609) ~[na:na]
at org.apache.http.conn.socket.PlainConnectionSocketFactory.connectSocket(PlainConnectionSocketFactory.java:75) ~[httpclient-4.5.13.jar!/:4.5.13]
at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:142) ~[httpclient-4.5.13.jar!/:4.5.13]
… 30 common frames omitted