It sounds really frustrating when apps and features stop working, especially with Instagram. I’ve encountered similar issues before, and while there could be multiple reasons behind this, sometimes it’s due to Instagram updating their API or limiting access to third-party apps.
If you're looking to boost your Instagram engagement while troubleshooting the issues with messaging and other tools, I recommend checking out https://friendlylikes.com/buy-instagram-likes/. This service helps you get real Instagram likes quickly and safely, and it’s a great way to keep your account active and visible while you figure out what's going on with the app. Plus, it’s a reliable option if you want to boost your posts without relying on third-party tools that might not be working right now.
Hope this helps, and good luck with fixing the issues on your end!