I'm having problems with instabot. I want to upload an image but it gives me an error

My code:

```
bot = Bot()
bot.login(username=username, password=password)
bot.upload_photo(image,caption='title')

```

Error:

```
line 23, in <module> bot.login(username=username, password=password)
line 443, in login if self.api.login(**args) is False
line 240, in login self.load_uuid_and_cookie(load_cookie=use_cookie, load_uuid=use_uuid)
line 199, in load_uuid_and_cookie return load_uuid_and_cookie(self, load_uuid=load_uuid, load_cookie=load_cookie)
line 352, in load_uuid_and_cookie
cookie_username = self.cookie_dict["ds_user"]
KeyError: 'ds_user'

```