[Resolved] makes an extra copy of the language page

Problem:
The client was experiencing an issue where WPML was creating unnecessary URLs in the format /pl/ and /en/ for a website that uses different domains for each language version. This resulted in six versions of each page instead of the required two, causing server load issues.

Solution:
1. We reset the permalinks to "postname" to ensure that URLs like https://4659bb91.cfolks.pl/pl/malta redirect to https://4659bb91.cfolks.pl/malta.
2. We advised the client to use the "A different domain per language" option as detailed in our documentation here.
3. We investigated the permalink structure "/%category%/%postname%.html" and found it was causing issues with WPML redirection. We escalated the issue to our secondary support team for further investigation.
4. We recommended checking if the Permalink Manager Pro plugin could redirect the unnecessary URLs to the correct ones, thus resolving the issue.

If the solution provided here is not relevant to your case, either because it's outdated or not applicable, we highly recommend checking related known issues here, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. If the issue persists, please open a new support ticket here.