SDAT Info section issue

[JeanHenriqueAlves]

I'm using Tinke 0.9.0.0, when I click the Info section after I open a .sdat file, it gives the following error:

System.OverflowException: The value was too large or too small for an unassigned byte.
in System.Decimal.ToByte(Decimal value)
in SDAT.InfoForm.numericPLAYER_ValueChanged(Object sender, EventArgs e)
in System.Windows.Forms.NumericUpDown.OnValueChanged(EventArgs e)
in System.Windows.Forms.NumericUpDown.set_Value(Decimal value)
in SDAT.InfoForm.ReadRecord(Int32 page)
in SDAT.InfoForm.ReadInfo()
in SDAT.InfoForm..ctor(Info info)
in SDAT.iSDAT.btnInfoSect_Click(Object sender, EventArgs e)
in System.Windows.Forms.Control.OnClick(EventArgs e)
in System.Windows.Forms.Button.OnClick(EventArgs e)
in System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
in System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
in System.Windows.Forms.Control.WndProc(Message& m)
in System.Windows.Forms.ButtonBase.WndProc(Message& m)
in System.Windows.Forms.Button.WndProc(Message& m)
in System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
in System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
in System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

I'm trying to edit the .sdat of an english Pokémon HeartGold ROM. If I click continue, and click again on the button, it opens the info section normally, but after I make my changes and click 'Accept', the 'Save SDAT' button does not save any changes. Sometimes, clicking this button crashes the ROM.