(function() {
    if (!window.AVDUberCTA) {
        return;
    }

    var sessionId = getSessionId();
    var pageViewSent = false;
    var engagedSent = false;
    var scroll25Sent = false;
    var scroll50Sent = false;
    var scroll75Sent = false;
    var popupShownSent = false;

    function getSessionId() {
        try {
            var key = "avd_uber_session_id";
            var existing = localStorage.getItem(key);

            if (existing) {
                return existing;
            }

            var id = "s_" + Date.now() + "_" + Math.random().toString(16).slice(2);
            localStorage.setItem(key, id);

            return id;
        } catch (e) {
            return "s_no_storage_" + Date.now();
        }
    }

    function getDevice() {
        var w = window.innerWidth || document.documentElement.clientWidth || 0;

        if (w <= 767) {
            return "mobiel";
        }

        if (w <= 1024) {
            return "tablet";
        }

        return "desktop";
    }

    function getTimezone() {
        try {
            return Intl.DateTimeFormat().resolvedOptions().timeZone || "";
        } catch (e) {
            return "";
        }
    }

    function sendEvent(data) {
        try {
            var form = new FormData();

            form.append("action", AVDUberCTA.action);
            form.append("nonce", AVDUberCTA.nonce);
            form.append("type", data.type || "unknown");
            form.append("source", data.source || "unknown");
            form.append("context", data.context || AVDUberCTA.pageType || "unknown");
            form.append("device", getDevice());
            form.append("pageUrl", AVDUberCTA.pageUrl || window.location.href);
            form.append("targetUrl", data.targetUrl || "");
            form.append("label", data.label || "");
            form.append("sessionId", sessionId);

            form.append("referrer", document.referrer || "");
            form.append("language", navigator.language || "");
            form.append("screenWidth", window.screen && window.screen.width ? window.screen.width : 0);
            form.append("screenHeight", window.screen && window.screen.height ? window.screen.height : 0);
            form.append("timezone", getTimezone());

            if (navigator.sendBeacon) {
                navigator.sendBeacon(AVDUberCTA.ajaxUrl, form);
                return;
            }

            fetch(AVDUberCTA.ajaxUrl, {
                method: "POST",
                body: form,
                credentials: "same-origin",
                keepalive: true
            }).catch(function(){});
        } catch (e) {}
    }

    function trackPageView() {
        if (pageViewSent) {
            return;
        }

        pageViewSent = true;

        sendEvent({
            type: "page_view",
            source: "page",
            context: AVDUberCTA.pageType || "unknown",
            label: document.title || "Pagina bekeken"
        });
    }

    function trackEngagedSession(source) {
        if (engagedSent) {
            return;
        }

        engagedSent = true;

        sendEvent({
            type: "engaged_session",
            source: source || "engagement",
            context: AVDUberCTA.pageType || "unknown",
            label: "Betrokken sessie"
        });
    }

    function trackScroll() {
        var doc = document.documentElement;
        var body = document.body;

        var scrollTop = window.pageYOffset || doc.scrollTop || body.scrollTop || 0;
        var scrollHeight = Math.max(
            body.scrollHeight || 0,
            doc.scrollHeight || 0,
            body.offsetHeight || 0,
            doc.offsetHeight || 0,
            body.clientHeight || 0,
            doc.clientHeight || 0
        );

        var windowHeight = window.innerHeight || doc.clientHeight || 0;
        var maxScroll = scrollHeight - windowHeight;

        if (maxScroll <= 0) {
            return;
        }

        var percent = Math.round((scrollTop / maxScroll) * 100);

        if (percent >= 25 && !scroll25Sent) {
            scroll25Sent = true;
            sendEvent({
                type: "scroll_25",
                source: "scroll",
                context: AVDUberCTA.pageType || "unknown",
                label: "Scroll 25%"
            });
        }

        if (percent >= 50 && !scroll50Sent) {
            scroll50Sent = true;
            trackEngagedSession("scroll_50");
            sendEvent({
                type: "scroll_50",
                source: "scroll",
                context: AVDUberCTA.pageType || "unknown",
                label: "Scroll 50%"
            });
        }

        if (percent >= 75 && !scroll75Sent) {
            scroll75Sent = true;
            sendEvent({
                type: "scroll_75",
                source: "scroll",
                context: AVDUberCTA.pageType || "unknown",
                label: "Scroll 75%"
            });
        }
    }

    function closestCTA(el) {
        while (el && el !== document) {
            if (el.getAttribute && el.getAttribute("data-avd-cta") === "1") {
                return el;
            }

            el = el.parentNode;
        }

        return null;
    }

    function trackCTAClick(cta) {
        if (!cta) {
            return;
        }

        sendEvent({
            type: cta.getAttribute("data-avd-cta-type") || "cta_click",
            source: cta.getAttribute("data-avd-cta-source") || "unknown",
            context: AVDUberCTA.pageType || "unknown",
            targetUrl: cta.getAttribute("href") || "",
            label: (cta.textContent || "").replace(/\s+/g, " ").trim()
        });
    }

    function setupCTATracking() {
        document.addEventListener("click", function(event) {
            var cta = closestCTA(event.target);

            if (!cta) {
                return;
            }

            trackCTAClick(cta);
        }, true);
    }

    function setupPopupTracking() {
        var popup = document.getElementById("avdUberPopup");

        if (!popup) {
            return;
        }

        var observer = new MutationObserver(function() {
            var visible = popup.getAttribute("aria-hidden") === "false" || popup.classList.contains("is-visible") || popup.classList.contains("active");

            if (visible && !popupShownSent) {
                popupShownSent = true;

                sendEvent({
                    type: "popup_shown",
                    source: "popup",
                    context: AVDUberCTA.pageType || "unknown",
                    label: "Popup getoond"
                });
            }
        });

        observer.observe(popup, {
            attributes: true,
            attributeFilter: ["class", "aria-hidden"]
        });

        document.addEventListener("click", function(event) {
            var close = event.target && event.target.closest ? event.target.closest("[data-avd-popup-close]") : null;

            if (!close) {
                return;
            }

            sendEvent({
                type: "popup_close",
                source: "popup",
                context: AVDUberCTA.pageType || "unknown",
                label: "Popup gesloten"
            });
        }, true);
    }

    function setupCloseTracking() {
        document.addEventListener("click", function(event) {
            var close = event.target && event.target.closest ? event.target.closest(".avd-cta-close") : null;

            if (!close) {
                return;
            }

            sendEvent({
                type: "sticky_close",
                source: "sticky_bar",
                context: AVDUberCTA.pageType || "unknown",
                label: "Sticky bar gesloten"
            });
        }, true);
    }

    function setupEngagementTracking() {
        setTimeout(function() {
            trackEngagedSession("engagement_10s");
        }, 10000);

        window.addEventListener("scroll", trackScroll, {
            passive: true
        });

        document.addEventListener("click", function() {
            trackEngagedSession("first_click");
        }, {
            once: true,
            capture: true
        });
    }

    function init() {
        if (String(AVDUberCTA.trackViews) === "1") {
            trackPageView();
        }

        setupCTATracking();
        setupPopupTracking();
        setupCloseTracking();
        setupEngagementTracking();
    }

    if (document.readyState === "loading") {
        document.addEventListener("DOMContentLoaded", init);
    } else {
        init();
    }
})();
<br />
<b>Fatal error</b>:  Uncaught Error: Class &quot;AVD_Uber_CTA_Loader&quot; not found in /home/u580525827/domains/alexandervandijl.nl/public_html/wp-content/plugins/avd-uber-cta/avd-uber-cta.php:1757
Stack trace:
#0 /home/u580525827/domains/alexandervandijl.nl/public_html/wp-includes/class-wp-hook.php(341): avd_uber_cta_bootstrap()
#1 /home/u580525827/domains/alexandervandijl.nl/public_html/wp-includes/class-wp-hook.php(365): WP_Hook-&gt;apply_filters()
#2 /home/u580525827/domains/alexandervandijl.nl/public_html/wp-includes/plugin.php(522): WP_Hook-&gt;do_action()
#3 /home/u580525827/domains/alexandervandijl.nl/public_html/wp-settings.php(622): do_action()
#4 /home/u580525827/domains/alexandervandijl.nl/public_html/wp-config.php(81): require_once('/home/u58052582...')
#5 /home/u580525827/domains/alexandervandijl.nl/public_html/wp-load.php(50): require_once('/home/u58052582...')
#6 /home/u580525827/domains/alexandervandijl.nl/public_html/wp-blog-header.php(13): require_once('/home/u58052582...')
#7 /home/u580525827/domains/alexandervandijl.nl/public_html/index.php(17): require('/home/u58052582...')
#8 {main}
  thrown in <b>/home/u580525827/domains/alexandervandijl.nl/public_html/wp-content/plugins/avd-uber-cta/avd-uber-cta.php</b> on line <b>1757</b><br />