ZeroDivisionError: division by zero
File "mspray/apps/main/tasks.py", line 447, in update_sprayed_visited_week
_set_sprayed_visited("location")
File "mspray/apps/main/tasks.py", line 438, in _set_sprayed_visited
set_sprayed_visited(location, week_number=week_number)
File "mspray/apps/main/tasks.py", line 348, in set_sprayed_visited
ratio = round((found * 100) / total_structures)
ZeroDivisionError: division by zero
https://sentry.onalabs.org/ona/mspray/issues/72058/