Troubleshooting React/Node.js Dashboard Charts

I need help diagnosing an issue on my company's website. The User Analytics section of our dashboard, built with React and Next.js for the frontend and Node.js with MongoDB for the backend, is not displaying some charts. This problem started after some recent updates to the codebase. There's no error message popping up when the charts fail to display, they simply do not appear.

Ideal Skills and Experience:
- Proficient in React, Next.js, Node.js, and MongoDB
- Experienced in troubleshooting frontend/backend communication issues
- Able to understand and debug code changes
- Familiar with data visualization libraries in React
- Can provide solutions and fix the issue

Please bid if you can help solve this problem.