If I go into the log, after trying to turn on my lights this is the error I get:
2018-10-15 20:02:55.762 [ERROR] [ui.internal.items.ItemUIRegistryImpl] - Cannot retrieve item âLight2_Powerâ for widget org.eclipse.smarthome.model.sitemap.Switch
2018-10-15 20:02:55.765 [ERROR] [ui.internal.items.ItemUIRegistryImpl] - Cannot retrieve item for widget org.eclipse.smarthome.model.sitemap.Switch
2018-10-15 20:02:55.768 [ERROR] [ui.internal.items.ItemUIRegistryImpl] - Cannot retrieve item âLight2_Powerâ for widget org.eclipse.smarthome.model.sitemap.Switch
2018-10-15 20:02:55.771 [ERROR] [ui.internal.items.ItemUIRegistryImpl] - Cannot retrieve item âLight2_Powerâ for widget org.eclipse.smarthome.model.sitemap.Switch
2018-10-15 20:02:55.774 [ERROR] [ui.internal.items.ItemUIRegistryImpl] - Cannot retrieve item âLight2_Powerâ for widget org.eclipse.smarthome.model.sitemap.Switch
==> /var/log/openhab2/events.log <==
2018-10-15 20:06:13.942 [ome.event.ItemCommandEvent] - Item âLight1_Nightmodeâ received command ON
==> /var/log/openhab2/openhab.log <==
2018-10-15 20:06:13.977 [INFO ] [nal.protocol.MilightV6SessionManager] - Bridge reports an invalid command: -121
2018-10-15 20:06:14.069 [INFO ] [nal.protocol.MilightV6SessionManager] - Bridge reports an invalid command: -120
==> /var/log/openhab2/events.log <==
2018-10-15 20:11:45.280 [ome.event.ItemCommandEvent] - Item âLight1_Nightmodeâ received command OFF
2018-10-15 20:11:45.309 [vent.ItemStateChangedEvent] - Light1_Nightmode changed from ON to OFF
==> /var/log/openhab2/openhab.log <==
2018-10-15 20:11:45.655 [INFO ] [nal.protocol.MilightV6SessionManager] - Bridge reports an invalid command: -119
2018-10-15 20:11:45.668 [INFO ] [nal.protocol.MilightV6SessionManager] - Bridge reports an invalid command: -118
==> /var/log/openhab2/events.log <==
2018-10-15 20:11:45.857 [ome.event.ItemCommandEvent] - Item âLight1_Whitemodeâ received command ON
2018-10-15 20:11:45.869 [vent.ItemStateChangedEvent] - Light1_Whitemode changed from OFF to ON
==> /var/log/openhab2/openhab.log <==
2018-10-15 20:11:45.880 [INFO ] [nal.protocol.MilightV6SessionManager] - Bridge reports an invalid command: -117
==> /var/log/openhab2/events.log <==
2018-10-15 20:11:46.751 [ome.event.ItemCommandEvent] - Item âLight2_Nightmodeâ received command ON
2018-10-15 20:11:46.774 [vent.ItemStateChangedEvent] - Light2_Nightmode changed from OFF to ON
==> /var/log/openhab2/openhab.log <==
2018-10-15 20:11:46.784 [INFO ] [nal.protocol.MilightV6SessionManager] - Bridge reports an invalid command: -116
2018-10-15 20:11:46.889 [INFO ] [nal.protocol.MilightV6SessionManager] - Bridge reports an invalid command: -115
==> /var/log/openhab2/events.log <==
2018-10-15 20:11:47.474 [ome.event.ItemCommandEvent] - Item âLight2_Whitemodeâ received command ON
2018-10-15 20:11:47.494 [vent.ItemStateChangedEvent] - Light2_Whitemode changed from OFF to ON
==> /var/log/openhab2/openhab.log <==
2018-10-15 20:11:47.687 [INFO ] [nal.protocol.MilightV6SessionManager] - Bridge reports an invalid command: -114