I cannot log into https://paws.wmflabs.org anymore.
Initially I got HTTP error 502 Bad Gateway Error.
After reading related issues I deleted all browser cookies.
Now I get HTTP error 503 and still cannot login.
I was executing a Pywikibot script to extract data from Wikidata.
Then I opened a second Python3 Jupyter Notebook to start another script in parallel.
Maybe I was blocked out because of this?