ratios.get_reinvestment_rate(trailing=4) not working

[cianryan09]

I'm trying to run the get_reinvestment_rate function but it doesn't work once you put in trailing period figure greater than 0.

The error message is:
An error occurred while trying to run the function get_dividend_payout_ratio. window must be an integer 0 or greater
Series([], dtype: object)

The dividend payout ratio function works fine with trailing=4