If you are using a Plesk server, please follow the steps below for the Xilifox Image Optimizer plugin to work properly.
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Step 1. #
Log in to your Plesk dashboard and go to the “Websites & Domains” tab.
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Step 2. #
Find your website and expand its settings by going to the “Hosting & DNS” tab and clicking the “Apache & Nginx” button.
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Step 3. #
In the “Serve static files directly by nginx” field, remove the following extensions:
- jpeg
- jpg
- png
- webp
- avif
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Step 4. #
Save the changes by clicking the “Apply” button.
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Step 5. #
That’s all! The error on the plugin settings page should disappear.