hello i get "failed to connect to server error" can anyone help me pls this is my log

2015/08/29 11:53:38 Info TeamSpeak 3 Client 3.0.17 (2015-08-04 07:38:33)
2015/08/29 11:53:38 Info SystemInformation: Windows 7 SP1 (7601) x64 (AMD or Intel) Binary: 64bit
2015/08/29 11:53:38 Direct Sound Debug setting timer resolution to 1ms
2015/08/29 11:53:38 Info Loading plugin: clientquery_plugin
2015/08/29 11:53:38 Info Loading plugin: lua_plugin
2015/08/29 11:53:38 Info Loading plugin: teamspeak_control_plugin
2015/08/29 11:53:38 Info Loading plugin: test_plugin
2015/08/29 11:53:38 Info Loading plugin: ts3g15
2015/08/29 11:53:38 Query Info listening on 127.0.0.1:25639
2015/08/29 11:53:38 Windows Audio Session Devel DeviceDeleteList::waitForDeletes - enter
2015/08/29 11:53:38 Windows Audio Session Devel DeviceDeleteList::waitForDeletes - leave
2015/08/29 11:53:38 Info *** Time [SERVERVIEWMANAGER]: 174
2015/08/29 11:53:38 Input Info Default monitoring enabled
2015/08/29 11:53:39 Info *** Time [MAINWINDOW]: 495
2015/08/29 11:53:39 Info *** Time [INIT]: 496
2015/08/29 11:53:39 ClientUI Info Qt version: 5.4.1
2015/08/29 11:53:39 ClientUI Info Using configuration location: C:\Users\Rico\AppData\Roaming\TS3Client\settings.d b
2015/08/29 11:53:39 ClientUI Info Last update check was: Sat Aug 29 09:22:02 2015
2015/08/29 11:53:39 Info Statistics report: Not yet, next report on Fri Sep 25 19:39:06 2015
2015/08/29 11:53:40 Newsticker Info Newsticker next check: Sat Aug 29 14:16:53 2015