# Updating Panel Troubleshooting

# Pterodactyl Panel Troubleshooting Guide

## Introduction

This document outlines common issues encountered after updating Pterodactyl Panel and provides step-by-step solutions for diagnosing and fixing these problems. The guide is based on a real troubleshooting session where a Pterodactyl panel stopped loading after an update.

<p class="callout info">Following the instructions in these pages should work most times.  
[https://pterodactyl.io/panel/1.0/updating.html](https://pterodactyl.io/panel/1.0/updating.html)  
[https://pterodactyl.io/guides/php\_upgrade.html](https://pterodactyl.io/guides/php_upgrade.html)  
  
Blueprint docs if needed:  
[https://blueprint.zip/docs/?page=getting-started/Installation](https://blueprint.zip/docs/?page=getting-started/Installation)  
  
Replace favicons in "**/var/www/pterodactyl/public/favicons**" with the ones found here [https://mirror.fullbuff.gg/resources/favicons/](https://mirror.fullbuff.gg/resources/favicons/)</p>

## Common Issues After Pterodactyl Updates

### 1. Panel Fails to Load

The panel may fail to load after an update due to several possible causes:

- Missing PHP extensions
- PHP version mismatch
- Web server configuration issues
- Database connection problems
- Permission issues
- Maintenance mode not disabled
- Cache issues

### 2. Web Server Conflicts

One specific issue we encountered was having both Apache and NGINX trying to use port 80 simultaneously.

## Diagnostic Steps

### 1. Check Panel Logs

First, examine the panel logs to identify specific errors:

```bash
tail -n 100 /var/www/pterodactyl/storage/logs/laravel-$(date +%F).log

```

Common error messages you might see:

- "could not find driver" (MySQL connection issue)
- "Class 'DOMDocument' not found" (Missing PHP XML extension)
- Database connection errors

### 2. Check Web Server Status

Verify that your web server is running:

```bash
systemctl status nginx
# or
systemctl status apache2

```

If you see errors like "bind() to 0.0.0.0:80 failed", it means something else is using port 80.

### 3. Check What's Using Port 80

To identify services using port 80:

```bash
lsof -i :80
# or
netstat -tuln | grep :80

```

### 4. Check Redis Status

Redis is needed for caching and queues:

```bash
systemctl status redis
# or
systemctl status redis-server

```

## Common Solutions

### 1. Fix Missing PHP Extensions

Install required PHP extensions. Make sure to use your correct PHP version (in our case, 8.3):

```bash
apt update
apt install -y php8.3-mysql php8.3-xml php8.3-curl php8.3-gd php8.3-mbstring php8.3-zip php8.3-bcmath php8.3-intl

```

### 2. Fix Web Server Conflicts

If both Apache and NGINX are trying to use port 80:

**Option 1: Use NGINX (Recommended for Pterodactyl)**

```bash
systemctl stop apache2
systemctl disable apache2
systemctl start nginx
systemctl enable nginx

```

**Option 2: Use Apache**

```bash
systemctl stop nginx
systemctl disable nginx
systemctl start apache2
systemctl enable apache2

```

### 3. Fix PHP-FPM Configuration

Make sure your web server is configured to use the correct PHP version:

1. Check your NGINX configuration:

```bash
nano /etc/nginx/sites-available/pterodactyl.conf

```

2. Look for the PHP-FPM socket path and update it to match your installed PHP version:

```
location ~ \.php$ {
    fastcgi_pass unix:/run/php/php8.3-fpm.sock;  # Adjust version number as needed
    # Other configuration...
}

```

3. Restart NGINX after making changes:

```bash
nginx -t  # Test the configuration
systemctl restart nginx

```

### 4. Fix Permissions

Set proper permissions on Pterodactyl files:

```bash
chown -R www-data:www-data /var/www/pterodactyl/*
chmod -R 755 /var/www/pterodactyl/storage/* /var/www/pterodactyl/bootstrap/cache/

```

### 5. Clear Cache

Clear various caches after updates:

```bash
cd /var/www/pterodactyl
php artisan config:clear
php artisan view:clear
php artisan cache:clear

```

### 6. Exit Maintenance Mode

If the panel was left in maintenance mode:

```bash
cd /var/www/pterodactyl
php artisan up

```

### 7. Restart Queue Worker

Always restart the queue worker after updates:

```bash
systemctl restart pteroq

```

## Troubleshooting Third-party Extensions

If you have third-party extensions like Blueprint:

1. After fixing the core panel, reinstall the extension
2. Reinstall any dependencies required by the extension
3. Clear cache again after reinstalling extensions

If UI indicators show extensions as not fully installed despite working functionality, this might be a UI glitch that doesn't affect operations.

## Preventative Measures for Future Updates

1. Always back up before updating
2. Check PHP version compatibility before updating
3. Make sure all required PHP extensions are installed
4. Follow the official update guide completely
5. Take note of any custom configurations or extensions you have installed
6. Monitor the logs during and after the update process

## Conclusion

Most Pterodactyl panel issues after updates can be traced to missing PHP extensions, web server configuration mismatches, or permission problems. By systematically checking logs, verifying services, and applying the appropriate fixes, you can quickly restore functionality to your panel.