Joomla 500 error Illegal mix of collations

Joomla 3.7 introduced the custom fields as part of the core. It was a great feature missing in previous releases. However you may experience some issues while upgrading your site and trying to use it.

If you face the "illegal mix of collations issue" and already tried to fix the collation in phpmyadmin or using AdminTools extension, you can try the solution below.

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