OK, look, thanks for help.
1026200x800000000000007757ApplicationRaoni-PCApplication: MFBot_442.exe Framework Version: v4.0.30319 Description: The process was terminated due to an unhandled exception. Exception Info: System.IO.IOException at System.IO.__Error.WinIOError(Int32, System.String) at System.IO.FileStream.Init(System.String, System.IO.FileMode, System.IO.FileAccess, Int32, Boolean, System.IO.FileShare, Int32, System.IO.FileOptions, SECURITY_ATTRIBUTES, System.String, Boolean, Boolean, Boolean) at System.IO.FileStream..ctor(System.String, System.IO.FileMode, System.IO.FileAccess, System.IO.FileShare, Int32, System.IO.FileOptions, System.String, Boolean, Boolean, Boolean) at System.IO.StreamWriter.CreateFile(System.String, Boolean, Boolean) at System.IO.StreamWriter..ctor(System.String, Boolean, System.Text.Encoding, Int32, Boolean) at System.IO.File.InternalWriteAllText(System.String, System.String, System.Text.Encoding, Boolean) at de.mfbot.MFBot_NG.Basisbibliothek.IniFile.Save() at de.mfbot.MFBot_NG.Basisbibliothek.IniFile.() at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object) at System.Threading.ThreadHelper.ThreadStart()
Application: MFBot_442.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
PS: Use the bot 4.5.1, however only closes with control, alt, delete and do not know why did not show up there.