ZeroDivisionError: float division by zero

[stefan-as]

Traceback (most recent call last):
File "/opt/sensu/embedded/lib/ruby/gems/2.4.0/gems/sensu-plugins-mongodb-2.0.1/bin/check-mongodb.py", line 1471, in <module>
sys.exit(main(sys.argv[1:]))
File "/opt/sensu/embedded/lib/ruby/gems/2.4.0/gems/sensu-plugins-mongodb-2.0.1/bin/check-mongodb.py", line 255, in main
return check_asserts(con, host, warning, critical, perf_data)
File "/opt/sensu/embedded/lib/ruby/gems/2.4.0/gems/sensu-plugins-mongodb-2.0.1/bin/check-mongodb.py", line 1200, in check_asserts
regular_ps = delta[1] / delta[0]
ZeroDivisionError: float division by zero