Crash [Indev 0.49.1] Loss of Party After Battle Crash

[MNOPYZ]

Game crashes whenever I go into a wild battle or against a trainer.

What I expected to happen:
After beating a hiker, I expected to still have my Pokemon...

What actually happened:
After battling a hiker in Route 33 (just before Azalea Town), the following happened:

1. I lost all my Pokemon in my party.
2. The 'Pokemon' option disappeared from the start menu altogether
3. I no longer have a Pokemon following me.
4. I crash whenever I get into a battle.

Extra info: This was my party: Cyndaquil, Gastly, Ratata, Metapod, Geodude, Egg.

Kolben Games Crash Log V 2.3
Pokémon 3D has crashed!
// 1 ERROR

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A backup file was created here: 2014-07-18_18.04.40_backup.txt
Visit this page in order to get your save restored:
http://pokemon3d.net/forum/forums/backup_support/create-thread

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Game information:

Pokémon 3D Indev version: 0.49.1 (80)
Content Packs: {}
Active GameMode: Pokemon 3D
GameJolt Account: TRUE (311319)
Playing on Servers: TRUE (Official P3D Server/karp.pokemon3d.net:15124)
Game Environment: OverworldScreen
Actionscript: No script running
File Validation: True
Sandboxmode: False

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Screen state for the current screen (OverworldScreen)

IsSurfing=False
IsRiding=False
LevelFile=route33.dat
UsedStrength=False
EntityCount=816

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System specifications:

Operating system: Microsoft Windows 7 Ultimate  [6.1.7601.65536]
Core architecture: 32 Bit
System time: 7/18/2014 6:04:40 PM
System language: English (United States)(ENU) / Loaded game language: en
Decimal separator: .
Available physical memory: 2 Gigabyte
Available logical processors: 2

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.Net installation information:

v2.0.50727  2.0.50727.5420  SP2
v3.0  3.0.30729.5420  SP2
v3.5  3.5.30729.5420  SP1
v4 
  Client  4.5.50938
  Full  4.5.50938
v4.0 
  Client  4.0.0.0

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Graphics Card information:

[CardName(s): "ATI Radeon HD 4300/4500 Series       "]
[CardRAM(s) : "1073741824"]

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Error information:

Message: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
InnerException: NOTHING
BaseException: Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index
HelpLink: No helplink available.
Data: Items: 0
Source: mscorlib

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Error solution:
(The provided solution might not work for your problem)

Error ID: -1
Error Type: NaN
Error Description: The error is undocumented in the error handling system.
Error Solution: NaN

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CallStack:

   at System.ThrowHelper.ThrowArgumentOutOfRangeException()
   at System.Collections.Generic.List`1.get_Item(Int32 index)
   at _2._5DHero.Level.PokemonEncounter()
   at _2._5DHero.Level.Update()
   at _2._5DHero.OverworldScreen.Update()
   at _2._5DHero.Basic.Update(GameTime gameTime)
   at _2._5DHero.DGame.Update(GameTime gameTime)
   at Microsoft.Xna.Framework.Game.Tick()
   at Microsoft.Xna.Framework.Game.HostIdle(Object sender, EventArgs e)
   at Microsoft.Xna.Framework.GameHost.OnIdle()
   at Microsoft.Xna.Framework.WindowsGameHost.RunOneFrame()
   at Microsoft.Xna.Framework.WindowsGameHost.ApplicationIdle(Object sender, EventArgs e)
   at System.Windows.Forms.Application.ThreadContext.System.Windows.Forms.UnsafeNativeMethods.IMsoComponent.FDoIdle(Int32 grfidlef)
   at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
   at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
   at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
   at System.Windows.Forms.Application.Run(Form mainForm)
   at Microsoft.Xna.Framework.WindowsGameHost.Run()
   at Microsoft.Xna.Framework.Game.RunGame(Boolean useBlockingRun)
   at Microsoft.Xna.Framework.Game.Run()
   at _2._5DHero.Program.Main(String[] args)

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You should report this error.

Go to "http://pokemon3d.net/forum/forums/6/create-thread" to report this crash there.

 

[MrHippocrit]

A backup file was created here: 2014-07-18_18.04.40_backup.txt
Visit this page in order to get your save restored:
http://pokemon3d.net/forum/forums/backup_support/create-thread

As stated by the crash report, a backup file was created and thus your pokemon can be restored.

Go to Pokemon/save/backup/2014-07-18_18.04.40_backup.txt
And then use this: http://pokemon3d.net/forum/forums/backup_support/create-thread