How do I know if I still have a chance with a girl?

So I matched with girl on a dating app, the conversation was fun and deep. We further also connected on Instagram and talked a while and then one fine day she just stopped reading my messages. She's active on Instagram i know.. she posts stories and we also follow eachother. Can I try to revive the conversation with memes or anything else?
How do I know if I still have a chance with a girl?
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