java.io.IOException: Server returned HTTP response code: 401 for URL: http://backend:1337/api/histories

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java.io.IOException: Server returned HTTP response code: 401 for URL: http://backend:1337/api/histories
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1840)
at com.nanocloud.auth.noauthlogged.connection.LoggedConnection.logStartConnection(LoggedConnection.java:117)
at com.nanocloud.auth.noauthlogged.connection.LoggedConnection.connect(LoggedConnection.java:287)
at org.glyptodon.guacamole.net.basic.TunnelRequestService.createConnectedTunnel(TunnelRequestService.java:173)
at org.glyptodon.guacamole.net.basic.TunnelRequestService.createTunnel(TunnelRequestService.java:338)
at org.glyptodon.guacamole.net.basic.websocket.BasicGuacamoleWebSocketTunnelEndpoint.createTunnel(BasicGuacamoleWebSocketTunnelEndpoint.java:116)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:827)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1425)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.lang.Thread.run(Thread.java:745)

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