Iphone 5 Shuts down by its self

Question

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
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
  triggerId: 458758
  profileId: 152043
  metricCCDiagnosticsAllowed {
    allowed: true
    timestamp: 1375682465972
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
metriclogs {
  triggerTime: 1375689830835
  triggerId: 589825
  profileId: 152001
  wifiPowerState {
    timestamp: 1375689830835
    powerState: true
metriclogs {
  triggerTime: 1375689824778
  triggerId: 458758
  profileId: 152043
  metricCCDiagnosticsAllowed {
    allowed: true
    timestamp: 1375689825019

Answer 1

I want to change the time lapse so that my iphone doesn't shut down (sleep) so quickly when not in use. How do I do this. - isn't there a way of making it 5 minutes, or 10 minutes, etc?