'NoneType' object has no attribute 'split'

[stan000]

>python blinkistscraper @.* ********
←[2m[12:43:23]←[0m ←[34mINFO←[0m Starting scrape run...
←[2m[12:43:23]←[0m ←[34mINFO←[0m Initialising chromedriver at C:\Users***\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\chromedriver_autoinstaller\91\chromedriver.exe...

DevTools listening on ws://127.0.0.1:56424/devtools/browser/492b0c18-1e9f-431f-8080-49943064fb4b
←[2m[12:43:32]←[0m ←[34mINFO←[0m Logged into Blinkist. Loading Library...
←[2m[12:43:33]←[0m ←[31mERROR←[0m 'NoneType' object has no attribute 'split'
Traceback (most recent call last):
File "\blinkistscraper_main_.py", line 412, in
main()
File "\blinkistscraper_main_.py", line 358, in main
categories = scraper.get_categories(
File "**\blinkistscraper\scraper.py", line 322, in get_categories
"label": " ".join(label.split()).replace("&", "&"), "url": href
AttributeError: 'NoneType' object has no attribute 'split'
←[2m[12:43:33]←[0m ←[41mCRITICAL←[0m Uncaught Exception. Exiting...

Any idea?