I got an <SystemError>

I have just got an in Python 3.9.6. I wrote some C codes to open, you know, some files in Windows with hidden extention names. I got an while openning a file. It said “XXX lineno: 1, opcode: 0”. Then the error occured. Should I update to 3.9.9?

Can you open an issue on bugs.Python.org, showing code to reproduce this?