백테스트 에러 발생 문의

안녕하세요

3.1 backtest_macd.ipynb를 약간 변형해서 돌리는데 도중에 아래와 같은 에러가 발생합니다. 잘 돌아가다가 중간에 에러가 발생해서 원인을 찾기 힘드네요.

*[19534] time:11/02/22 19:03:00 stop long loss:-8.0876 revenue:-4.6852 unit:0.065
...
*[164109] time:02/11/23 00:45:00 profit short profit:3.342 revenue:-162.9091 unit:0.0292
*[164468] time:02/11/23 06:43:00 profit short profit:2.8615 revenue:-160.0476 unit:0.0304
*[168046] time:02/13/23 18:16:00 stop long loss:-3.8556 revenue:-163.9032 unit:0.0311
*[168049] time:02/13/23 18:19:00 profit short profit:5.0146 revenue:-158.8886 unit:0.0304
---------------------------------------------------------------------------
IndexError                                Traceback (most recent call last)
C:\Users\Public\Documents\ESTsoft\CreatorTemp\ipykernel_27880\3903563835.py in <module>
     50 for i in range(0, 300000): #300000
     51 
---> 52     t      = round(df.iloc[i+1:i+2]['t'].values[0],4)   #시간
     53     close1 = round(df.iloc[i:i+1]['c'].values[0],4)     #이전 타임스텝 종가
     54     close2 = round(df.iloc[i+1:i+2]['c'].values[0],4)   #현재 타임스텝 종가

IndexError: index 0 is out of bounds for axis 0 with size 0