Problem: If you're experiencing issues with your site becoming very slow, almost unusable, or displaying incorrect pages and some links leading to 404 errors when WPML plugins are activated, the issue might be related to incorrect settings. Solution: We found that the problem was due to an incorrect slug: 'product-category' was used instead of 'categoria-prodotto'. We recommend checking your slug settings to ensure they are correctly configured for your target language. If you need a visual guide on how to fix this, we have prepared a video tutorial which can be helpful: video tutorial.
Please note that this solution might be irrelevant if it's outdated or not applicable to your case. We highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. If the problem persists, please open a new support ticket at WPML support forum for further assistance.
