Imagine, I have put stop loss order for one crypto at $0.301, is it possible that if no one put a buy order at this price, my order will not be filled? I don't know how it works in such cases. Although the event is very unlikely to happen but, technically it's possible that no buyer put an order at $0.301
What will happen to my order?
The possibility of your stop order not filling isn't completely ruled out. Aside from trading with an exchange with good liquidity, there are other things that should be considered. One of which is the spread between buy and sell orders in the order books. If you're using an exchange like Binance, Houbi, etc; this shouldn't be much of an issue, your stop orders should hit without any problems.