AttributeError: 'NoneType' object has no attribute 'lower'

[Dezaku]

23:13:57 finding a post to re-post 23:13:57 picking a random subreddit 23:13:57 checking subreddit: danganronpa 23:13:57 searching post in sub: danganronpa 23:13:57 pushshift-url: https://api.pushshift.io/reddit/search/submission/?subreddit=danganronpa&before=1637014437&after=1636928037&score>=5000&limit=1&author!=[deleted]&selftext:not=[deleted] 23:13:58 reposting post: qu18sn Traceback (most recent call last): File "/home/dezaku/reddit-karma-farming-bot/./src/init.py", line 12, in bot.run() File "/home/dezaku/reddit-karma-farming-bot/src/bot.py", line 10, in run reddit.run() File "/home/dezaku/reddit-karma-farming-bot/src/bots/reddit/bot.py", line 65, in run self.tick() File "/home/dezaku/reddit-karma-farming-bot/src/bots/reddit/bot.py", line 60, in tick action.call() File "/home/dezaku/reddit-karma-farming-bot/src/bots/reddit/actions/post_actions.py", line 122, in repost sub = self.rapi.subreddit(self.crosspost(sub.display_name)) File "/home/dezaku/reddit-karma-farming-bot/.venv/lib/python3.10/site-packages/praw/models/helpers.py", line 321, in call lower_name = display_name.lower() AttributeError: 'NoneType' object has no attribute 'lower'