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?
You are right. If there is not buyer for the price set on your stop loss there will be no filling of the order. This is why, when putting a stop loss you need to give some degree of difference between the trigger conditions and the execution otherwise your order could just be skipped through.