Problem: The client is experiencing 404 errors when switching languages on their website. The issue arises because the permalink includes the slug of the wrong language or is not translated when switching from an English archive page back to German. Solution: We recommend checking the implementation of the taxonomy slug translations. It appears that the issue might be related to the use of the
_x()
function in the
register_taxonomy
function, which might conflict with existing translation files. To resolve this, you could try removing the
_x()
functions and setting a fixed slug to translate with WPML. Additionally, ensure that the slug translation is correctly configured in WPML. You can find guidance on translating taxonomy slugs in the WPML documentation here: WPML FAQ on translating taxonomy slugs.
If this solution does not apply to your case, or if it seems outdated, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have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 issues persist, please open a new support ticket at WPML support forum.
