That is the one thing that is difficult in React Native, getting rid of those debug errors. Sometimes they don't make enough sense to know what they are. But we google are way out of them. Sometimes they're related to a compatibility issues, and communication issues between Objective C and RN.
I would not expect any of these error messages to show up in a production build unless it was misconfigured (which it unfortunately sounds like the Instagram build was based on these reports).