TypeError: 'NoneType' object cannot be interpreted as an integer

I am at the stage of Downloading a Dataset, and then I encountered an error stating: TypeError: ‘NoneType’ object cannot be interpreted as an integer.

!pip install -q roboflow

from roboflow import Roboflow

rf = Roboflow(api_key=“*********”)

project = rf.workspace(“237-lnozm”).project(“korban-qlwb3”)

version = project.version(1)

dataset = version.download(“yolov5”)

TypeError Traceback (most recent call last)
in <cell line: 5>()
3 from roboflow import Roboflow
4 rf = Roboflow(api_key=“0KSA7T5tqnB2dgBUoThB”)
----> 5 project = rf.workspace(“237-lnozm”).project(“korban-qlwb3”)
6 version = project.version(1)
7 dataset = version.download(“yolov5”)

1 frames
/usr/local/lib/python3.10/dist-packages/roboflow/core/project.py in init(self, api_key, a_project, model_format)
63 self.type = a_project[“type”]
64 self.unannotated = a_project[“unannotated”]
—> 65 self.updated = datetime.datetime.fromtimestamp(a_project[“updated”])
66 self.model_format = model_format
67

TypeError: ‘NoneType’ object cannot be interpreted as an integer