Content Encoding Error

Hello Eva,

Thank you for reaching out and I am happy to help!
The Content Encoding Error suggests that a web server whose HTTP response headers indicate that it will be responding with one type of encoding, but instead responds with a different type of encoding.
In W3 Total Cache Gzip compression is used for this. However, you may have some server-level configurations that utilize different types of compression.
What I would suggest is to completely clear the Firefox browser Cache on your end, re-enable Gzip compression in the W3 Total Cache, save all settings, and purge the cache.
Check if the website is still throwing this error. If the issue persists, please check with your hosting provider if some compression is enabled on their end. For example, you can check for zlib.output_compression

This can be enabled in the php.ini file, cpanel, or the Apache config file – .htaccess

If you are unsure about this, please check with your hosting provider support.

Let me know if this helps!

Thanks!