eFileAccessError when saving to dwg files in custom code

[TXACDE24]

I have the eFileAccessError when running a custom code using the netload command to load the .dll file after starting AutoCAD Electrical.

However, the same code runs well when in visual studio debugging mode starting AutoCAD Electrical as an external program.

Below is the code to save to dwg files.

//assign file name and determine if its is named
string strDWGName = acDoc.Name;
object obj = Autodesk.AutoCAD.ApplicationServices.Application.GetSystemVariable("DWGTITLED");
// Check to see if the drawing has been named
if (System.Convert.ToInt16(obj) == 0)
{
// If the drawing is using a default name (Drawing1, Drawing2, etc)
// then provide a new name
strDWGName = $"{symbol.Name}.dwg";
}

try
{
acCurDb.SaveAs(strDWGName, true, DwgVersion.Current, acDoc.Database.SecurityParameters);
}
catch (System.Exception e)
{
MessageBox.Show(e.Message);
}