Issue: JSON parse error (your current error)
Cause: SigNoz API might not be available or returning HTML error page
Fix: Check if SigNoz is running: docker ps | findstr signoz
Issue: CORS error in browser console
Cause: Browser blocking cross-origin requests
Fix: Use localhost URLs (already configured) or add CORS headers to SigNoz
Issue: Connection refused (port 5318 or 8080)
Cause: Services not running
Fix: Start SigNoz: docker-compose up -d and OTel: sc start otelcol-contrib