Try fix internationalization

                </nav>

                <script>

                    document.querySelector("[lang*='en'] a[href$='/en/search/'], [lang*='de'] a[href$='/suchen/']").addEventListener("click", (event) => {

                        document.querySelector("#search-modal").showModal()

                        const isEnglish = event.target.href.includes("/en/")

                        const searchModal = document.querySelector("#search-modal")

                        searchModal.action = isEnglish ? "/en/" : "/"

                        searchModal.querySelector("input[type='search']").placeholder = isEnglish ? "Search..." : "Suchen..."

                        searchModal.showModal()

                        event.preventDefault()

                    })

                </script>