Возникает ошибка при написании программы.

[А_лександр1993]

Всем привет може кто то помочь с такой ошибкой ?
вот сама программа http://rgho.st/8SD7qjJxN
прошу помогите если это возможно


See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values.
Parameter name: startIndex
at System.String.Insert(Int32 startIndex, String value)
at ASBDecompiler.Decompiler.<InjectCod e>d__21.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.Tas kAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.Tas kAwaiter.HandleNonSuccessAndDebugge rNotification(Task task)
at System.Runtime.CompilerServices.Tas kAwaiter.ValidateEnd(Task task)
at NebogameClient.Updater.<InjectCode> d__35.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.Tas kAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.Tas kAwaiter.HandleNonSuccessAndDebugge rNotification(Task task)
at System.Runtime.CompilerServices.Tas kAwaiter.ValidateEnd(Task task)
at NebogameClient.Updater.<StartWork>d __c.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.Asy ncMethodBuilderCore.<>c.<ThrowAsync >b__6_0(Object state)


************** Loaded Assemblies **************
mscorlib
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1055.0 built by: NETFXREL2
CodeBase: file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll
----------------------------------------
NebogameClient
Assembly Version: 1.0.0.0
Win32 Version: 1.0.0.0
CodeBase: file:///C:/Users/1/Desktop/E3EE~1/CLIENT~1/NEBOGA~1.EXE
----------------------------------------
System.Windows.Forms
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1055.0 built by: NETFXREL2
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1055.0 built by: NETFXREL2
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Drawing
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1055.0 built by: NETFXREL2
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System.Core
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1055.0 built by: NETFXREL2
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
----------------------------------------
CefSharp
Assembly Version: 39.0.0.0
Win32 Version: 39.0.0.0
CodeBase: file:///C:/Users/1/Desktop/E3EE~1/CLIENT~1/CefSharp.DLL
----------------------------------------
System.Configuration
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1055.0 built by: NETFXREL2
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Xml
Assembly Version: 4.0.0.0
Win32 Version: 4.6.1055.0 built by: NETFXREL2
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------

************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.

For example:

<configuration>
<system.windows.forms jitDebugging="true" />
</configuration>

When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.

[p51x]

Ну вам же все написали - пытаетесь вставить в строку по индексу, который выходит за границу (размер строки)

System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values.
Parameter name: startIndex
at System.String.Insert(Int32 startIndex, String value)

[А_лександр1993]

Сообщение от p51x

Ну вам же все написали - пытаетесь вставить в строку по индексу, который выходит за границу (размер строки)

я в этом не понимаю, поэтому и попросил