ninaS-15

Problem:
You are experiencing frequent 503 errors on your webshop, which have been traced back to WPML causing high memory consumption due to a request loop on the front page. Deactivating WPML has stopped the crashes but resulted in the loss of multilingual functionality and decreased online visibility.
Solution:
We recommend the following steps to resolve the issue:
1. Clear all caches:
- Server cache
- Site cache
2. Adjust the settings in object-cache-pro to exclude certain groups from caching. Add the following groups to the 'DO NOT CACHE GROUPS' section:

counts
plugins
themes
terms

3. Save the settings.
4. Reactivate WPML and test your website again.
Additionally, WPML 4.9 includes fixes that might address your issue, particularly with object caching and translating taxonomy terms. You can consider installing the beta version by following this guide: https://wpml.org/faq/how-to-install-beta-and-development-versions-of-wpml/
Before making any changes, ensure you have a full backup of your site.

Please note that this solution might become outdated or may not apply to your specific situation. If the issue persists, 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 needed, do not hesitate to open a new support ticket for further assistance.