AKShare 接口问题报告-stock_board_concept_hist_em使用代码会报错

[chanmankong]

a = akshare.stock_board_concept_hist_em(symbol="BK1676")
Traceback (most recent call last):
File "", line 1, in
File "/root/momentum-strategy/.venv/lib/python3.11/site-packages/akshare/stock/stock_board
_concept_em.py", line 256, in stock_board_concept_hist_em
stock_board_code = stock_board_concept_em_map[
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/root/momentum-strategy/.venv/lib/python3.11/site-packages/pandas/core/arrays/_mixin
s.py", line 293, in getitem
result = self._ndarray[key]
~~~~~~~~~~~~~^^^^^
IndexError: index 0 is out of bounds for axis 0 with size 0