jureD-3

Problem:
The client's website encounters an Internal Server Error 500 when trying to access different pages from the menu in the English version.

Solution:
We recommend taking the following steps to resolve the issue:
1. Ensure you have a backup of your site.
2. Add the following code to the

functions.php

file of your theme:

add_filter('mod_rewrite_rules', 'fix_rewritebase');
function fix_rewritebase($rules){
    $home_root = parse_url(home_url());
    if ( isset( $home_root['path'] ) ) {
        $home_root = trailingslashit($home_root['path']);
    } else {
        $home_root = '/';
    }
  
    $wpml_root = parse_url(get_option('home'));
    if ( isset( $wpml_root['path'] ) ) {
        $wpml_root = trailingslashit($wpml_root['path']);
    } else {
        $wpml_root = '/';
    }
  
    $rules = str_replace("RewriteBase $home_root", "RewriteBase $wpml_root", $rules);
    $rules = str_replace("RewriteRule . $home_root", "RewriteRule . $wpml_root", $rules);
  
    return $rules;
}

3. Re-save the permalinks from the Settings >> Permalinks page by pressing the Save Changes button.
4. Clear all types of caches including site/server cache, plugin cache, CDN cache, and browser cache.

For more details, please refer to our documentation: https://wpml.org/faq/why-is-htaccess-getting-overwritten-with-the-language-folder-on-my-wpml-website/

If the solution provided here is not relevant due to being outdated or not applicable to your case, we encourage you to open a new support ticket. We also 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 further assistance is needed, please contact us in the WPML support forum.