Do you know how to fix the following error?
pi@raspberrypi:/opt/openhab $ sudo ./start.sh
Launching the openHAB runtime...
osgi> 2016-04-27 04:01:23.016 [INFO ] [.o.core.internal.CoreActivator] - openHAB runtime has been started (v1.8.1).
2016-04-27 04:01:25.863 [INFO ] [o.o.i.s.i.DiscoveryServiceImpl] - mDNS service has been started
2016-04-27 04:01:26.207 [INFO ] [o.o.i.s.i.DiscoveryServiceImpl] - Service Discovery initialization completed.
2016-04-27 04:01:31.306 [INFO ] [penhab.io.rest.RESTApplication] - Started REST API at /rest
2016-04-27 04:01:35.006 [INFO ] [c.internal.ModelRepositoryImpl] - Loading model 'iotpi.sitemap'
2016-04-27 04:01:35.792 [INFO ] [c.internal.ModelRepositoryImpl] - Loading model 'rrd4j.persist'
2016-04-27 04:01:35.854 [INFO ] [c.internal.ModelRepositoryImpl] - Loading model 'logging.persist'
2016-04-27 04:01:35.873 [INFO ] [c.internal.ModelRepositoryImpl] - Loading model 'db4o.persist'
2016-04-27 04:01:35.887 [INFO ] [c.internal.ModelRepositoryImpl] - Loading model 'exec.persist'
2016-04-27 04:01:36.009 [INFO ] [c.internal.ModelRepositoryImpl] - Loading model 'demo.script'
2016-04-27 04:01:36.286 [INFO ] [c.internal.ModelRepositoryImpl] - Loading model 'iotpi.items'
2016-04-27 04:01:36.866 [INFO ] [.o.u.w.i.servlet.WebAppServlet] - Started Classic UI at /classicui/openhab.app
2016-04-27 04:01:41.081 [INFO ] [insteonplm.InsteonPLMActivator] - Insteon PLM binding has been started.
2016-04-27 04:01:41.077 [INFO ] [.service.AbstractActiveService] - HTTP Refresh Service has been started
2016-04-27 04:01:41.145 [INFO ] [.o.b.i.InsteonPLMActiveBinding] - dead device timeout set to 3000s
2016-04-27 04:01:41.147 [INFO ] [.service.AbstractActiveService] - InsteonPLM has been started
2016-04-27 04:01:41.147 [INFO ] [.o.b.i.InsteonPLMActiveBinding] - config: port_0 -> /hub2/Thorodan:tsNr2Cp7@192.168.1.106:25105,poll_time=1000
2016-04-27 04:01:41.156 [INFO ] [.o.b.i.InsteonPLMActiveBinding] - devices: 0 configured, 0 polling, msgs received: 0
2016-04-27 04:01:41.241 [INFO ] [.o.b.i.InsteonPLMActiveBinding] - config: service.pid -> org.openhab.insteonplm
2016-04-27 04:01:41.277 [INFO ] [.p.rrd4j.internal.RRD4jService] - Removing invalid defintion component = null heartbeat = 0 min/max = 0.0/0.0 step = 0 0 archives(s) = [] 0 items(s) = []
2016-04-27 04:01:41.709 [INFO ] [.service.AbstractActiveService] - NTP Refresh Service has been started
2016-04-27 04:01:42.914 [INFO ] [.service.AbstractActiveService] - Hue Refresh Service has been started
2016-04-27 04:01:42.936 [INFO ] [.service.AbstractActiveService] - InsteonHub Refresh Service has been started
2016-04-27 04:01:42.942 [INFO ] [.i.h.a.s.InsteonHubSerialProxy] - Connected to Insteon Hub: 192.168.1.106:25105
2016-04-27 04:01:44.112 [INFO ] [runtime.busevents ] - iot_hue_color1 state updated to ON
2016-04-27 04:01:44.121 [INFO ] [runtime.busevents ] - iot_hue_color1 state updated to 81.9230769230769197974950657226145267486572265625,57,100
2016-04-27 04:01:44.125 [INFO ] [runtime.busevents ] - iot_hue_color2 state updated to ON
2016-04-27 04:01:44.128 [INFO ] [runtime.busevents ] - iot_hue_color2 state updated to 360,0,0
2016-04-27 04:01:44.131 [INFO ] [runtime.busevents ] - iot_hue_switch1 state updated to ON
2016-04-27 04:01:44.134 [INFO ] [runtime.busevents ] - iot_hue_switch2 state updated to ON
2016-04-27 04:01:47.980 [ERROR] [o.b.i.i.driver.hub.HubIOStream] - got exception while polling: org.apache.http.conn.ConnectTimeoutException: Connect to 192.168.1.106:25105 timed out
2016-04-27 04:01:53.988 [ERROR] [o.b.i.i.driver.hub.HubIOStream] - got exception while polling: org.apache.http.conn.ConnectTimeoutException: Connect to 192.168.1.106:25105 timed out
2016-04-27 04:01:59.996 [ERROR] [o.b.i.i.driver.hub.HubIOStream] - got exception while polling: org.apache.http.conn.ConnectTimeoutException: Connect to 192.168.1.106:25105 timed out
2016-04-27 04:02:06.005 [ERROR] [o.b.i.i.driver.hub.HubIOStream] - got exception while polling: org.apache.http.conn.ConnectTimeoutException: Connect to 192.168.1.106:25105 timed out
2016-04-27 04:02:12.014 [ERROR] [o.b.i.i.driver.hub.HubIOStream] - got exception while polling: org.apache.http.conn.ConnectTimeoutException: Connect to 192.168.1.106:25105 timed out
2016-04-27 04:02:17.239 [ERROR] [o.b.i.i.driver.hub.HubIOStream] - failed to write to hub: org.apache.http.conn.ConnectTimeoutException: Connect to 192.168.1.106:25105 timed out