why my game cannot start?

@NathanMikeska i v done it

@321321321123123123 It looks like your system is currently set up with an invalid time zone. Take a look at your system clock and time zone.

@NathanMikeska this is maybe a trouble，i believe jundroo will fix it

@NathanMikeska i do it myself and find why i cannot play,i change my system time

@NathanMikeska Initialize engine version: 2018.2.3f1 (1431a7d2ced7)
GfxDevice: creating device client; threaded=1
Direct3D:
Version: Direct3D 11.0 [level 11.1]
Renderer: NVIDIA GeForce GT 1030 (ID=0x1d01)
Vendor:
VRAM: 1982 MB
Driver: 23.21.13.9135
Begin MonoManager ReloadAssembly
- Completed reload, in 0.133 seconds
Shader 'Jundroo/SunShader': fallback shader 'None' not found
<RI> Initializing input.

<RI> Input initialized.

<RI> Initialized touch support.

UnloadTime: 0.393215 ms
InvalidTimeZoneException: Exception of type 'System.InvalidTimeZoneException' was thrown.
at System.TimeZoneInfo.FromRegistryKey (System.String id, Microsoft.Win32.RegistryKey key) [0x00014] in <f2e6809acb14476a81f399aeb800f8f2>:0
at System.TimeZoneInfo.FindSystemTimeZoneById (System.String id) [0x0003f] in <f2e6809acb14476a81f399aeb800f8f2>:0
at System.TimeZoneInfo.CreateLocal () [0x00045] in <f2e6809acb14476a81f399aeb800f8f2>:0
at System.TimeZoneInfo.getLocal () [0x00009] in <f2e6809acb14476a81f399aeb800f8f2>:0
at System.TimeZoneInfo.GetDateTimeNowUtcOffsetFromUtc (System.DateTime time, System.Boolean& isAmbiguousLocalDst) [0x00000] in <f2e6809acb14476a81f399aeb800f8f2>:0
at System.DateTime.getNow () [0x00008] in <f2e6809acb14476a81f399aeb800f8f2>:0
at Assets.Scripts.Game.Initialize () [0x00096] in <1b5ff281e74a43aabe8f2ee319ca107d>:0
UnityEngine.DebugLogHandler:Internal_LogException(Exception, Object)
UnityEngine.DebugLogHandler:LogException(Exception, Object)
UnityEngine.Logger:LogException(Exception, Object)
UnityEngine.Debug:LogException(Exception)
Assets.Scripts.Game:Initialize()
Assets.Scripts.Game:EnsureInitialized()
Assets.Scripts.Startup.StartupScript:Start()

(Filename: <f2e6809acb14476a81f399aeb800f8f2> Line: 0)

NullReferenceException: Object reference not set to an instance of an object
at Assets.Scripts.Startup.StartupUtilities.GetDeviceInformation () [0x0004d] in <1b5ff281e74a43aabe8f2ee319ca107d>:0
at Assets.Scripts.Startup.StartupUtilities.LogDeviceInformation () [0x00000] in <1b5ff281e74a43aabe8f2ee319ca107d>:0
at Assets.Scripts.Startup.StartupScript.Start () [0x0005c] in <1b5ff281e74a43aabe8f2ee319ca107d>:0
UnityEngine.DebugLogHandler:Internal_LogException(Exception, Object)
UnityEngine.DebugLogHandler:LogException(Exception, Object)
UnityEngine.Logger:LogException(Exception, Object)
UnityEngine.Debug:LogException(Exception)
Assets.Scripts.Startup.StartupScript:Start()

(Filename: <1b5ff281e74

@321321321123123123 No, this is an early access release, not a demo.

@NathanMikeska is this game a demo now？

@NathanMikeska nop，several days...

@NathanMikeska i will but several years later，i have some thing to do

You from 321?

Sorry to hear you are having trouble. After the issue occurs again, can you provide us with your game's log file (via pastebin.com or dropbox or something similar)?

The game log file should be located here:
%APPDATA%..\LocalLow\Jundroo\SimpleRockets 2\output_log.txt