There's a chance that HTML isn't fetched like it should and throws an error:
PHP Fatal error: Call to a member function getElementById() on boolean in /Users/brechtvdv/iRail/brail2gtfs/scripts/2-calendar_dates.txt.php on line 234
Also happens here:
Fatal error: Call to a member function getElementsByTagName() on boolean in /Users/brechtvdv/iRail/brail2gtfs/scripts/2-calendar_dates.txt.php on line 75
There's a chance that HTML isn't fetched like it should and throws an error:
PHP Fatal error: Call to a member function getElementById() on boolean in /Users/brechtvdv/iRail/brail2gtfs/scripts/2-calendar_dates.txt.php on line 234
This should be checked and retried when incorrect