Troubleshooting – The cPanel Admin

AutoSSL Let’s Encrypt Rate Limiting

nessa • March 7, 2026

You’ve just completed a cPanel server migration. The accounts are transferred, DNS is propagating, everything looks good… until you check the AutoSSL logs and see this staring back at you: WARN AutoSSL failed to create a new certificate order because the server’s Let’s Encrypt account (https://acme-v02.api.letsencrypt.org/acme/acct/XXXXXXX) has reached a rate limit. (429 urn:ietf:params:acme:error:rateLimited) Every domain […]

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Fixes, Scripts, Troubleshooting

The cPanel/WHM Autofixer

nessa • February 26, 2026

Cpanel 11.24 comes with an Autofixer that allows you to fix common problems that may prevent access to certain parts of your system.

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Fixes, Troubleshooting

Elevate: Unable to backup EA4 profile

nessa • June 14, 2023

When trying to upgrade from CentOS to AlmaLinux, cPanel 110 and earlier might experience the following error: Edit /etc/cpanel/ea4/profiles/pkg-manifest.json and remove the extra comma at the end of any list, for example: Then re-run Elevate and it should proceed.

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Apache, Fixes, Howto, Security, Troubleshooting

Troubleshooting Website SSL Issues – No Padlock

nessa • March 18, 2019

Having SSL problems? One of the most common issues our team handles is related to websites not properly displaying over HTTPS, whether it be the website either not loading entirely, or just not showing the green padlock: If you’re sure that the SSL certificate is installed properly, but your site isn’t showing as secure, there

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Fixes, Troubleshooting

cPanel Update Fails Due to RPM Conflict

nessa • February 3, 2016

The cPanel update fails due to a problem installing RPMs, but is not specific about what the problem is: [20160203.180007] Testing if the newly downloaded RPMS can be installed without conflict [20160203.180007] Testing RPM transaction [20160203.180012] [20160203.180012] ***** FATAL: Test install failed: [20160203.180012] The Administrator will be notified to review this output when this script

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Fixes, Troubleshooting

cPanel Update Fails with Exit Code 6400

nessa • June 21, 2013

Since the release of cPanel 11.32, the cPanel update process has extended OS checks to ensure that you are only updating cPanel on a compatible system. Specifically, you can no longer upgrade past version 11.32 on CentOS 4, or 11.30 on Redhat 9. Trying to do so will verbosely inform you that the upgrade is

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Apps, Troubleshooting

LFD – High CPU Usage While Sleeping

nessa • August 4, 2011

After switching several servers over from APF to CSF, my colleagues and I noticed that there are times during the day that LFD just chews away CPU, even while the process claims it’s “sleeping”: root 15785 35.6 0.1 194496 buy cheap levitra 93104 ? Ss 00:00 474:54 lfd – sleeping 35.6% CPU? What is it

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Fixes, Troubleshooting

User Databases Missing from cPanel

Mark • January 14, 2011

After upgrading to cPanel 11.28, a number of our users indicated that databases were missing from their cPanels, despite the actual databases existing on the server. There are a number of things that can cause this, including corrupted Perl modules and MySQL not running, but the major cause that I’ve seen is from the new

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Apache, Fixes, PHP, Troubleshooting

PHP 500 Internal Server Errors

nessa • May 17, 2010

500 Internal Server Errors are one of the most common PHP issues that I see customer experience, and it will occur mostly on servers with suPHP or PHP running as CGI. These errors can be caused by something on the server, or an issue on the user’s site. Here ‘s what you should do if

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