Iphone 5 Shuts down by its self

My Iphone 5 randomly wants to shut it self down, and also starts flashing when in lock screen or locks it self while busy on it: I went to th diagnostics and it showed me this error: How do i fix it:

timestamp: 1375680929833

crashReporterKey: "aa290048cba120c51c1afcaac8247ca5d8376723"

isAnonymous: true

deviceConfigId: 152

investigationId: 0

model: "iPhone5,2"

softwareBuild: "10B350"

firmwareVersion: "iBoot-1537.9.55"

basebandVersion: "3.04.25"

buildtype: "User"

metriclogs {

triggerTime: 1375681224051

triggerId: 458758

profileId: 152043

metricCCDiagnosticsAllowed {

allowed: true

timestamp: 1375681224275

}

}

metriclogs {

triggerTime: 1375682219814

triggerId: 458758

profileId: 152043

metricCCDiagnosticsAllowed {

allowed: true

timestamp: 1375682219853

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metriclogs {

triggerTime: 1375682465660

triggerId: 655363

profileId: 152008

locationUpdateSession {

timestamp: 1375682462028

timestampEnd: 1375682465654

desiredAccuracy: 1000

cellAvailable: true

wifiAvailable: false

passcodeLocked: false

airplaneMode: false

ttff: 0

ttffGps: -1

bundleid: "/System/Library/PrivateFrameworks/Weather.framework"

achievedAccuracy: 1662

achievedSpeed: -1

accessoryUsed: false

reachability: 1

powered: true

autoStopped: false

deferredLocations: 0

gpsCoexWifi: 0

gpsCoexBt: 0

poweredDuration: 3

mountedDuration: 0

}

}

metriclogs {

triggerTime: 1375682465739

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profileId: 152043

metricCCDiagnosticsAllowed {

allowed: true

timestamp: 1375682465972

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metriclogs {

triggerTime: 1375683748858

triggerId: 655363

profileId: 152008

locationUpdateSession {

timestamp: 1375683734663

timestampEnd: 1375683748843

desiredAccuracy: -1

cellAvailable: true

wifiAvailable: false

passcodeLocked: false

airplaneMode: false

ttff: 0

ttffGps: 0

bundleid: "com.apple.camera"

achievedAccuracy: 30

achievedSpeed: 0

accessoryUsed: false

reachability: 1

powered: true

autoStopped: false

deferredLocations: 0

gpsCoexWifi: 0

gpsCoexBt: 0

poweredDuration: 14

mountedDuration: 0

}

}

metriclogs {

triggerTime: 1375683748879

triggerId: 655365

profileId: 152010

compassSession {

timestamp: 1375683734665

timestampEnd: 1375683748851

uncalibrations: 0

bundleid: "com.apple.camera"

achievedCalibration: 5

magnitudeMin: 564

magnitudeMax: 576

gyroAge: 7

gyroFactoryBias {

x: 0.64498639

y: -3.0001602

z: 0.58556306

}

gyroFactorySlope {

x: -0.05922262

y: 0.041904509

z: 0.050769158

}

gyroFactoryL2Error {

x: 0.0040990529

y: 0.0007514804

z: 0.0012668998

}

gyroDeltaBias {

x: -0.23803699

y: -0.12255788

z: 0.2948007

}

gyroDeltaSlope {

x: 0.010550547

y: 0.0048508346

z: -0.011523731

}

gyroDynamicL2Error {

x: 0.021465108

y: 0.0014808599

z: 0.0078294715

}

gyroDynamicMaxTemp: 30

}

}

metriclogs {

triggerTime: 1375683749014

triggerId: 458758

profileId: 152043

metricCCDiagnosticsAllowed {

allowed: true

timestamp: 1375683749046

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}

metriclogs {

triggerTime: 1375689830835

triggerId: 589825

profileId: 152001

wifiPowerState {

timestamp: 1375689830835

powerState: true

}

}

metriclogs {

triggerTime: 1375689824778

triggerId: 458758

profileId: 152043

metricCCDiagnosticsAllowed {

allowed: true

timestamp: 1375689825019

}

}