Problem:
Upon activating WPML on the website built with the Hestia-pro theme, the site defaults to the default theme, as shown in the screenshot provided. An error message indicates missing tables in the database after a migration process. Restoration of these tables didn't resolve the issue, and an unknown column error persists.
Solution:
Following the supporter's guidance, the user executed specific steps including activating WordPress debugging mode, identifying the missing tables, and applying a code snippet to the theme's functions.php file. This process resolved the issue, allowing the site to function correctly despite the persistent error message in debug mode. The supporter recommended disabling debug mode and checking for any translation-related issues.