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Angefangen von: stevenK-22 in: English Support
Schnelle Lösung verfügbar

Problem:
If you're experiencing server errors on your site that make it very slow and often go away when you reload the page, we have identified a potential solution.
Solution:
First, you might be facing an issue that requires adding specific code to your theme's functions file to correct rewrite rules:

1. Using FTP, navigate to `/wp-content/themes/your-theme`.
2. Open the `functions.php` file for editing.
3. Add the following code and then save the changes:

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;
}

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

Additionally, to identify the exact cause of the errors, enable debugging in your site.

To enable it, open your wp-config.php file and look for define('WP_DEBUG', false);. Change it to:

1	`define('WP_DEBUG', true);`

To enable the error logging to a file on the server, you need to add yet one more similar line:

1	`define(` `'WP_DEBUG_LOG', true );`

The errors will be saved to a debug.log file inside the /wp-content/directory.

https://wpml.org/documentation/support/debugging-wpml/

If this solution does not apply to your case, or if it seems outdated, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have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. Should you need further assistance, please open a new support ticket at WPML support forum.