lando start results only with multiple "REQUEST FAILED WITH STATUS CODE 500"

[mmmikko]

It seemed that everything went well with integrated way of starting the site (interactively selecting the repository from pantheon, etc. + "lando pull" for database, files..), but after "lando start" I only get lots of this:

sitename 23:45:42 DEBUG ==> scan of 'http://sitename.lndo.site//' failed with 500 'Internal Server Error'
[TITLE] http://sitename.lndo.site/ [500] - REQUEST FAILED WITH STATUS CODE 500
sitename 23:45:43 DEBUG ==> scan of 'https://sitename.lndo.site//' failed with 500 'Internal Server Error'
[TITLE] https://sitename.lndo.site/ [500] - REQUEST FAILED WITH STATUS CODE 500
[RETRY] [25] http://localhost:5195 24/25 [500]
[TITLE] http://localhost:5195
[FAILED] Request failed with status code 500
[RETRY] [25] https://localhost:5194 24/25 [500]
[TITLE] https://localhost:5194
[FAILED] Request failed with status code 500
sitename 23:45:47 DEBUG ==> scan of 'https://localhost:5204/' failed with 500 '500 Service unavailable (with message)'
[TITLE] https://localhost:5204 [500] - REQUEST FAILED WITH STATUS CODE 500
[FAILED] Request failed with status code 500
[FAILED] Request failed with status code 500
sitename 23:45:49 DEBUG ==> scan of 'http://localhost:5195/' failed with 500 '500 Service unavailable (with message)'
[TITLE] http://localhost:5195 [500] - REQUEST FAILED WITH STATUS CODE 500
sitename 23:45:50 DEBUG ==> scan of 'https://localhost:5194/' failed with 500 '500 Service unavailable (with message)'
[TITLE] https://localhost:5194 [500] - REQUEST FAILED WITH STATUS CODE 500
[FAILED] Request failed with status code 500
[SUCCESS] EDGE SSL URLS
[FAILED] Request failed with status code 500
[SUCCESS] EDGE URLS
[FAILED] Request failed with status code 500
[SUCCESS] APPSERVER NGINX URLS
[SUCCESS] Task without title.

lando 23:45:55 DEBUG ==> emitting event before-end