It's the test result of my cs50p course of week 5(Back to the Bank). But when I check my code manually, it seems completely fine to me and I think that there is no problem. But the problem is in the second test which expects exit code 0, not 1.
I didn't know about exit code that much before but after this I had to research a little and I did so. But couldn't figure out what the heck was going into my code. If, you're experienced enough to encounter the problem please help me out. I need this.