Vtu result.

I’m rn in 4sem under VTU and I just saw that I failed a practical. I genuinely don’t know what went wrong. I feel extremely low and stressed because I worked hard for it. I’m confused about how to clear a practical backlog which semester can I reappear in? If someone has experience with this, please help. I really need some clarity right now.Is it possible that practical evaluations can be biased? I feel like my result doesn’t reflect my performance at all. I’m trying to understand what could have gone wrong.