Error with Download command

[d0ubl3puls4r]

I can not use the download command to download files from the compromised system, the following message appears

download Documento_Secreto.txt

[*] Downloading Documento_Secreto.txt...

Traceback (most recent call last):
File "agent.exe.py", line 176, in download
File "site-packages\requests\api.py", line 72, in get
File "site-packages\requests\api.py", line 58, in request
File "site-packages\requests\sessions.py", line 494, in request
File "site-packages\requests\sessions.py", line 437, in prepare_request
File "site-packages\requests\models.py", line 305, in prepare
File "site-packages\requests\models.py", line 379, in prepare_url
MissingSchema: Invalid URL 'Documento_Secreto.txt': No schema supplied. Perhaps you meant http://Documento_Secreto.txt?

I have already searched the system and in the ares directory itself and can not find the file