The issue is very clear from your screenshot — your balance is basically too small to place a trade.

What’s happening:

Your available balance: 0.00000361 USDT

Minimum trade requirement on is usually around $1–$10 (depending on the pair)

That’s why:

Max Buy = 0 NIGHT

Buy button looks inactive / won’t execute

Why this happens:

Crypto exchanges don’t allow extremely tiny orders (called dust amounts). Your balance is far below the minimum required to buy .

How to fix it:

You have 3 options:

✅ Option 1: Add more USDT

Go to Wallet → Deposit

Add at least 5–10 USDT (recommended)

Then try buying again

✅ Option 2: Convert small balances

Use Convert / Dust feature

Convert leftover small coins into USDT

✅ Option 3: Transfer funds

If you have funds in:

Funding wallet

P2P wallet
→ Transfer them to Spot wallet

Important note:

Even though NIGHT price is low (~0.037 USDT), exchanges still enforce a minimum order value, not just quantity.

If you want, I can guide you step-by-step on how to deposit USDT or buy NIGHT properly from Pakistan.