Diagnosing HTTP 500 / Internal Server Errors

TABLE OF CONTENTS Introduction Quick Checks PHP Service Checks Codebase Checks: PHP and WordPress OpenLiteSpeed Specific Checks Database Checks Introduction 500 errors can be caused by a variety of different factors, but by far the most common reason is errors within the codebase of your website. There’s usually either a fatal error due to a […]

Diagnosing 503 Errors

TABLE OF CONTENTS Introduction Check the Error Logs Disable Your CDN (if applicable) Rate Limiting Website Codebase Errors OpenLiteSpeed and 503 Errors Introduction 503 Service Unavailable errors are pretty rare on vCanopy. There are multiple different possible causes, but by far the most common is our inbuilt rate-limiting affecting a plugin that’s running a task. […]

Diagnosing 520 Errors

Third-Party Software Notice Our support team cannot provide support for third-party software and services. However, if you need assistance or spot an issue with this article please post in the vCanopy Community Forum, and we will make necessary updates/improvements where needed. Introduction  520 errors are CDN-specific, not web server-specific, and are a catch-all error. With […]

Sites are Down! Part 1: Here’s What Everyone Needs to Know

Introduction If your websites have been running smoothly for more than a few days, the chances of them running into a serious issue or “going down” is incredibly rare. However, a few key pieces of information can be incredibly empowering for if things do ever go wrong If you’re using best practices and you use your […]

Sites are Down! Part 2: Practical Troubleshooting

TABLE OF CONTENTS Introduction Quick First Checks Services are down (MySQL, PHP, Nginx, OLS) Checking the Logs Critical Errors / 500 Errors Check top / htop for Load and CPU Steal MySQL/Database Checks Freeing Up Disk Space Server is Overloaded You’ve Been Hacked Introduction In part 1 of this article we took a broad look […]

How to Fix the PHPMyAdmin “Bad Userdata” Error

Opening PHPMyAdmin (PHPMA) for both your live websites and staging sites is usually very quick and easy – you simply click on the little database icon next to your site, and PHPMA will open up in a new window and instantly log you in. If you’re experiencing a “Bad Userdata” error when you open up […]