Can you help me troubleshoot a Netflix problem?

I’ll try to explain this without confusing anyone. I do not have a Netflix account. I asked a friend of mine if he could share the account with me so I could use it on my Xbox 360. It’s been working perfectly for the past three months until now. Every time I run Netflix on the
Xbox dashboard, it says “Unable to connect to Netflix”. I’ve tried many methods but none have worked so far. Please help me with this problem!