python pygame error: IndexError: list index out of range How to fix?

Question

Python

When the code tries to interact with this department, an error occurs IndexError: list index out of range
I have been suffering with this error for a long time and I can’t fix it in any way.

for i in range(len(Spider_right)):
for j in range(len(bullets_right)):
if Spider_right[i].colliderect(bullets_right[j]):
del Spider_right[i]
del bullets_right[j]
score += 1

Answer 1

in some of the indices it is necessary to put i-1 or j-1, or in several at once.
post all the code