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Joomla Error Messages

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Nothing is more annoying than an error message on your Joomla website. Here you will find the solution to the most common errors.

Cannot write to log file

When someone tries to log in with incorrect login credentials in the administrator area of Joomla, the system records that attempt in a log file. If the log file cannot be opened or written into, the…

Could not connect to MySQL

When you see a white screen with the text "Error displaying the error page: Application Instantiation Error: Could not connect to MySQL." then no connection can be made to the database.

JFolder::create: Could not create directory

"JFolder :: create: Could not create directory" is a common error message. You may encounter this error when installing a Joomla extension or when moving, copying or installing a Joomla site.

Joomla shows a white screen

A white / blank screen is the most annoying error you can have, because you cannot figure out the cause of the problem when there is no error message to be seen.

Save failed with the following error: Null primary key not allowed

While saving an article, you encounter this error message "Save failed with the following error: Null primary key not allowed".

Sorry, your PHP version is not supported

From Joomla 4, you can no longer use PHP versions lower than 7.2. In Joomla 5, the minimum PHP version is 8.1.

This site is down for maintenance

You will get this message when the site is displayed offline due to maintenance.

Check-out failed with the following error

When an article is checked out, you will see a lock icon next to the article and you can no longer edit it.

Your PHP version is currently only getting security fixes from the PHP project.

When you log into Joomla, you may see a yellow or red warning about the PHP version you are using.

We have detected that your server is using PHP which is obsolete

When you log into Joomla, you may see a yellow or red warning about the PHP version you are using.

You are a spammer, hacker or an otherwise bad person

The message "You are a spammer, hacker or an otherwise bad person" is not from Joomla itself, but from the security extension "Akeeba Admin Tools" installed on your website.

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