Improve api performance

**Problem**
When working with routes, the error messages could be more descriptive.

**Suggestion**
Improve error handling and add detailed error messages.

**Context**
This would help with debugging and maintenance.

Start by locating the route handling and current error-generation entry points in the repository; no files or tests are named in the issue. Review how route failures are reported, then define detailed error messages and verify that the relevant error cases provide more debugging context.

Written by the indexing model from the issue text.