decoder.py issue

[totorankfast]

I'm getting this kind of issue, how to resolve this
Ubuntu 18,DigitalOcean

This user received his QR Code : user 123
Discord ID : 8864175802
Current time : 12:57:45
Ignoring exception in on_message
Traceback (most recent call last):
File "/usr/local/lib/python3.6/dist-packages/discord/client.py", line 343, in _run_event
await coro(*args, **kwargs)
File "./QrCodeBot-xyZ.py", line 37, in on_message
rawMessage = getRawMessage()
File "/root/QrCodeBot-xyZ/QRCodeBot.py", line 15, in getRawMessage
json_data = json.loads(r.text)
File "/usr/lib/python3.6/json/init.py", line 354, in loads
return _default_decoder.decode(s)
File "/usr/lib/python3.6/json/decoder.py", line 339, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/usr/lib/python3.6/json/decoder.py", line 357, in raw_decode
raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)