GOautodial Open Source Omni-channel Contact Center Suite

Hi,
My softphone is registered also showing in sip show peers but when I am trying to login using GUI that time not getting any ring on my softphone. At a same time when I am clicking on logout then after I am getting a ring on my softphone.

-- Remote UNIX connection
Parsing '/etc/asterisk/manager.conf': Found
Manager 'sendcron' logged on from 127.0.0.1
-- Executing [55558600060@default:1] MeetMeAdmin("Local/55558600060@default-7447,2", "8600060|K") in new stack
-- Executing [55558600060@default:2] Hangup("Local/55558600060@default-7447,2", "") in new stack
Spawn extension (default, 55558600060, 2) exited non-zero on 'Local/55558600060@default-7447,2'
-- Executing [h@default:1] DeadAGI("Local/55558600060@default-7447,2", "agi://127.0.0.1:4577/call_log--HVcauses--PRI-----NODEBUG-----16---------------") in new stack
-- AGI Script agi://127.0.0.1:4577/call_log--HVcauses ... ---------- completed, returning 0
Manager 'sendcron' logged off from 127.0.0.1
Parsing '/etc/asterisk/manager.conf': Found
Manager 'sendcron' logged on from 127.0.0.1
Parsing '/etc/asterisk/manager.conf': Found
Manager 'sendcron' logged on from 127.0.0.1
Manager 'sendcron' logged off from 127.0.0.1
-- Executing [8600060@default:1] MeetMe("SIP/8003-00000007", "8600060|F") in new stack
Parsing '/etc/asterisk/meetme.conf': Found
Parsing '/etc/asterisk/meetme-vicidial.conf': Found
-- Created MeetMe conference 1023 for conference '8600060'
-- <SIP/8003-00000007> Playing 'conf-onlyperson' (language 'en')
Manager 'sendcron' logged off from 127.0.0.1
-- Hungup 'DAHDI/pseudo-117894144' == Spawn extension (default, 8600060, 1) exited non-zero on 'SIP/8003-00000007'
-- Executing [h@default:1] DeadAGI("SIP/8003-00000007", "agi://127.0.0.1:4577/call_log--HVcauses--PRI-----NODEBUG-----16---------------") in new stack
-- AGI Script agi://127.0.0.1:4577/call_log--HVcauses ... ---------- completed, returning 0

My server was live yesterday without any problem. This problem started today... :(

I am using GoAuto 3.0.
OS:- Centos 5.5
Asterisk Verison:- 1.4.39.1
Vicidial VERSION: 2.4-364a
BUILD: 120409-1136