Why do women stop replying for no reason?

I’m on Hinge and I’ll be texting girls the most innocent things, and then they stop replying. It’s so random. I promise I’m not saying anything rude, just trying to be light and keep the conversation engaging. It doesn’t matter if I ask her out right away or if I try to get to know her a little beforehand, the result is the same. They just stop replying. It’s starting to get in my head and making me feel like I’m doing something wrong. This app is driving me insane.