This thread is resolved. Here is a description of the problem and solution.
Problem: When I try to change the language from the language switcher, I get an error 500 internal server error and this message is shown:
"Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator at firstname.lastname@example.org to inform them of the time this error occurred, and the actions you performed just before this error.
More information about this error may be available in the server error log.
Additionally, a 500 Internal Server Error error was encountered while trying to use an ErrorDocument to handle the request."
Solution: Many times, this is caused by an incompatibility issue between one/multiple plugin/s that you use or the theme you are using.
Please try this:
- disable all plugins except WPML and its add-ons - check if the issue is happening again - if it's not, reactivate your plugins one by one, checking every time if the issue shows up again so that you can understand which plugin is causing that issue
If the issue happens even with the non-WPML plugins disabled:
- leave all the non-WPML plugins deactivated - switch to a default theme like TwentySeventeen - try to recreate the issue now
This is the technical support forum for WPML - the multilingual WordPress plugin.
Everyone can read, but only WPML clients can post here. WPML team is replying on the forum 6 days per week, 22 hours per day.