"No section delimiter" exception raised when trying to add the printer to Windows 10

[Mister-SOSA]

While the server is listening, I try to add the printer to Windows 10 using the printer configuration wizard. As soon as Windows tries to add the printer, the following exception is thrown:

Exception occurred during processing of request from ('127.0.0.1', 56230)
Traceback (most recent call last):
  File "C:\Users\username\AppData\Local\Programs\Python\Python310\lib\socketserver.py", line 683, in process_request_thread
    self.finish_request(request, client_address)
  File "C:\Users\username\AppData\Local\Programs\Python\Python310\lib\socketserver.py", line 360, in finish_request
    self.RequestHandlerClass(request, client_address, self)
  File "C:\Users\username\AppData\Local\Programs\Python\Python310\lib\socketserver.py", line 747, in __init__
    self.handle()
  File "C:\Users\username\AppData\Local\Programs\Python\Python310\lib\http\server.py", line 432, in handle
    self.handle_one_request()
  File "C:\Users\username\AppData\Local\Programs\Python\Python310\lib\http\server.py", line 420, in handle_one_request
    method()
  File "C:\Users\username\AppData\Local\Programs\Python\Python310\lib\site-packages\ippserver\server.py", line 101, in do_POST
    self.handle_ipp()
  File "C:\Users\username\AppData\Local\Programs\Python\Python310\lib\site-packages\ippserver\server.py", line 130, in handle_ipp
    self.ipp_request = request.IppRequest.from_file(self.rfile)
  File "C:\Users\username\AppData\Local\Programs\Python\Python310\lib\site-packages\ippserver\request.py", line 56, in from_file
    raise Exception('No section delimiter')
Exception: No section delimiter
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