can you determine what this error means?

e 'winners_series' to create a series called recent_winners that only contains winners from the years 2000 to 2019. of enter and test your code here recont winnerg = winner nories. Loel 200y:20191 theok your result recent winners ReyError Traceback (most recent call last) Lunf/local/1ib/python3.9/dirtapackages/pandas/core/indexes/base.py, in get_loc(self, key, inethod, tolerance) \( \begin{array}{cc}3628 & \text { try: } \\ 3629 & \text { return Helf._engine.get_loe(casted_key) } \\ 3630 & \text { exeept. Keyerror as err: }\end{array} \) 10 frames pandas/_11bs/index_elass_helper,pxi in pandas._Hib, index. Int64Engine._oheck_type() TeyBrers " 2000 " The above exception was the direct cause of the following exception: Keykrror Traceback (most recent call 1ast) husr/looal/hib/python 3+9/ dist-paekages/pandas/core/indexes/base.py in get_1oe(alelf, key, method, tolerance) return atelf._engine.get_loc(casted_key) exeopt Keysrror an errt raise KeyError(key) from erf except Typesrrort if If we have a liselike key, _eheck_Indexinq error vill raite Keydrroms ' 2000 e 'winners_series' to create a series called recent_winners that only contains winners from the years 2000 to 2019. of enter and test your code here recont winnerg = winner nories. Loel 200y:20191 theok your result recent winners ReyError Traceback (most recent call last) Lunf/local/1ib/python3.9/dirtapackages/pandas/core/indexes/base.py, in get_loc(self, key, inethod, tolerance) \( \begin{array}{cc}3628 & \text { try: } \\ 3629 & \text { return Helf._engine.get_loe(casted_key) } \\ 3630 & \text { exeept. Keyerror as err: }\end{array} \) 10 frames pandas/_11bs/index_elass_helper,pxi in pandas._Hib, index. Int64Engine._oheck_type() TeyBrers " 2000 " The above exception was the direct cause of the following exception: Keykrror Traceback (most recent call 1ast) husr/looal/hib/python 3+9/ dist-paekages/pandas/core/indexes/base.py in get_1oe(alelf, key, method, tolerance) return atelf._engine.get_loc(casted_key) exeopt Keysrror an errt raise KeyError(key) from erf except Typesrrort if If we have a liselike key, _eheck_Indexinq error vill raite Keydrroms ' 2000