Zeile 36

Zudem:
https://wpml.org/forums/topic/link-one-language-to-another-site/#post-391360

function edit_wpml_lang( $url = '', $language = '' )
add_filter( 'WPML_filter_link', 'edit_wpml_lang', 10, 2 );

in functions.php ergänzen

URL UPDATE:
function edit_wpml_lang( $url = ", $language = " )
add_filter( 'WPML_filter_link', 'edit_wpml_lang', 10, 2 );

Zeile 36

Zudem:
https://wpml.org/forums/topic/link-one-language-to-another-site/#post-391360

function edit_wpml_lang( $url = '', $language = '' )
add_filter( 'WPML_filter_link', 'edit_wpml_lang', 10, 2 );

in functions.php ergänzen

URL UPDATE:
function edit_wpml_lang( $url = ", $language = " )
add_filter( 'WPML_filter_link', 'edit_wpml_lang', 10, 2 );