It is not clear for me how to solve this problem - where is problem and why is problem?

Traceback (most recent call last):
File "C:\root\Python\Python39\lib\runpy.py", line 197, in run_module_as_main
return run_code(code, main_globals, None,
File "C:\root\Python\Python39\lib\runpy.py", line 87, in run_code
exec(code, run_globals)
File "C:\root\Python\Python39\Scripts\fastapi-codegen.exe_main.py", line 7, in
File "C:\root\Python\Python39\lib\site-packages\typer\main.py", line 214, in call
return get_command(self)(*args, **kwargs)
File "C:\root\Python\Python39\lib\site-packages\click\core.py", line 829, in call
return self.main(*args, **kwargs)
File "C:\root\Python\Python39\lib\site-packages\click\core.py", line 782, in main
rv = self.invoke(ctx)
File "C:\root\Python\Python39\lib\site-packages\click\core.py", line 1066, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "C:\root\Python\Python39\lib\site-packages\click\core.py", line 610, in invoke
return callback(*args, **kwargs)
File "C:\root\Python\Python39\lib\site-packages\typer\main.py", line 500, in wrapper
return callback(**use_params) # type: ignore
File "C:\root\Python\Python39\lib\site-packages\fastapi_code_generator_main.py", line 47, in main
return generate_code(input_name, input_text, output_dir, template_dir, model_path)
File "C:\root\Python\Python39\lib\site-packages\fastapi_code_generator_main.py", line 86, in generate_code
raise Exception('Modular references are not supported in this version')
Exception: Modular references are not supported in this version