BOE: download fails randomly ("assert checkboxes")
Assertion error in category_tree_explorer_helper.py on 2018-10-03 https://git.nomics.world/dbnomics-fetchers/boe-fetcher/-/jobs/15432
File "/builds/dbnomics-fetchers/boe-fetcher/category_tree_explorer_helper.py", line 230, in get_series_codes
assert checkboxes
AssertionError