Troubleshooting Guide

Common Issues

Server Won't Start

Symptoms: Server fails to start or crashes immediately
Causes: Port conflicts, missing dependencies, configuration errors

Solution Steps:

# 1. Check for port conflicts
lsof -i :3003  # Backend
lsof -i :3000  # Frontend

# 2. Kill conflicting processes
kill -9 <PID>

# 3. Reinstall dependencies
npm run install:all

# 4. Check configuration
npm run config:validate

Database Connection Issues

Symptoms: Database connection timeouts, authentication errors
Causes: Incorrect credentials, database not running, network issues

Solution Steps:

# 1. Check database status
sudo systemctl status postgresql

# 2. Test connection
psql -h localhost -U postgres

# 3. Check environment variables
echo $DATABASE_URL

# 4. Reset database connection
npm run db:reset

🐛 Debugging Tools

Built-in Debug Commands

# Enable debug mode
DEBUG=hostingco:* npm run dev

# Check system health
npm run health:all

# Run diagnostics
npm run diagnose

# View error logs
npm run logs:errors

Database Debugging

# Check database connections
npm run db:status

# Run database diagnostics
npm run db:diagnose

# Check migration status
npm run migrate:status

Performance Issues

Slow Response Times

Common Causes: Database queries, memory leaks, inefficient code

Performance Analysis:

# Profile application
npm run profile:performance

# Check memory usage
npm run health:memory

# Analyze database queries
npm run db:profile

Memory Issues

# Check memory usage
free -h

# Monitor Node.js memory
node --inspect app.js

# Clear cache
npm run cache:clear

🔐 Authentication Issues

Login Problems

Symptoms: Unable to login, token errors, session issues

Troubleshooting Steps:

# 1. Check JWT configuration
npm run config:jwt

# 2. Reset admin password
npm run auth:reset-admin

# 3. Clear sessions
npm run auth:clear-sessions

# 4. Test authentication
npm run auth:test

Getting Help

Support Channels

Documentation: Check this guide first
GitHub Issues: Report bugs and feature requests
Community Forum: Get help from other users
Email Support: support@hostingco.com

Bug Report Template

## Bug Description
Brief description of the issue

## Steps to Reproduce
1. Go to...
2. Click on...
3. See error

## Expected Behavior
What should happen

## Actual Behavior
What actually happened

## Environment
- OS: [e.g. Ubuntu 20.04]
- Node.js version: [e.g. 20.19.2]
- Browser: [e.g. Chrome 120]

## Additional Context
Any other relevant information