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Joomla Update To 3.8.9 Error On Windows Servers

I tried recently to update joomla to the latest version released today. On the public servers I had no issue, but when I tried to update on my local server, I get this error: Fatal error: Class 'JClassLoader' not found in yourtheme\libraries\cms.php on line 40

It's strange because even if I try a clean installation of Joomla 3.8.9, it still gives me this error.

Until we have an official fix for this, I'm going to show you how you can get back your website in case you updated without having a backup:


First thing you need to do is to download the previous version, Joomla 3.8.8 pack and extract it.

Next you need to go to the libraries folder, find the file loader.php and copy it.

Now paste it in your updated joomla folder and replace the one you have there.


You should have your website back at this point.


LE: Joomla 3.8.10 was released immediately to fix this. But in case you were unlucky to encounter this issue in the short time between this releases, I hope this fix will help you.

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