Im Admin Bereich und bei der Bearbeitung von Inhaltseiten ist die obere Menüleiste verschwunden. Im Seitenquelltext ist mir dann folgendes Script aufgefallen:
<!DOCTYPE html>
<html>
<head><script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start': new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0], j = d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src= 'https://www.googletagmanager.com/gtm.js ... efore(j,f); })(window,document,'script','dataLayer','GTM-PDDL2SH');</script>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<title>...
Wie kann der Google Tag Manager auf meine Seiten kommen?

Weiter unten im Head dann das:
<link rel="stylesheet" href="./plugins/pluginloader/page_data/css/stylesheet.css" type="text/css">
<script type="text/javascript">
/* <![CDATA[ */
function toggle_tab(tabID) {
var curr_view = document.getElementById("PLTab_" + tabID);
var curr_tab = document.getElementById("tab_" + tabID);
if(curr_tab.className == "active_tab") {
curr_view.className = "inactive_view";
curr_tab.className = "inactive_tab";
return;
}
var views = document.getElementById("pd_views").getElementsByTagName("div");
var tabs = document.getElementById("pd_tabs").getElementsByTagName("a");
for (i = 0; i < views.length; i++) {
if(views.id.substr(0, 6) == "PLTab_") {
views.className = "inactive_view";
}
}
for (i = 0; i < tabs.length; i++) {
tabs.className = "inactive_tab";
}
curr_tab.className = "active_tab";
curr_view.className = "active_view";
return;
}
/* ]]> */
</script>
<script src="./plugins/tinymce/tinymce/tinymce.min.js"></script>
<script src="./plugins/tinymce/filebrowser.js"></script>
<script>function getCmsUrl(){return "/plugins/filebrowser/editorbrowser.php?editor=tinymce&prefix=./&base=./";}</script>
<script>var tinyConfig = {
// convert_urls: false,
selector: "cmsimple-editor",
skin: "cmsimple",
block_formats: "Header 1=h1;Header 2=h2;Header 3=h3;Header 4=h4;Header 5=h5;Header 6=h6;Div=div;Paragraph=p;code=code;pre=pre",
toolbar_items_size: "small",
fontsize_formats: "8px 10px 12px 14px 15px 16px 18px 20px 24px 26px 30px 36px",
entity_encoding : "named",
entities : "160,nbsp",
element_format : "html",
extended_valid_elements: "script[type|language|src]",
autosave_ask_before_unload: true,
plugins: [
"autosave advlist autolink lists link image media charmap print preview hr anchor pagebreak",
"searchreplace wordcount visualblocks visualchars code fullscreen nonbreaking",
"insertdatetime media nonbreaking save table contextmenu directionality",
"emoticons template paste textcolor colorpicker textpattern importcss"
],
image_description: true,
image_title: true,
image_dimensions: false,
image_advtab: true,
/*
image_class_list: [
{title: 'Keine Klasse', value: ''},
{title: 'left border', value: 'tmce_left tmce_border'},
{title: 'left no border', value: 'tmce_left tmce_noborder'},
{title: 'right border', value: 'tmce_right tmce_border'},
{title: 'right no border', value: 'tmce_right tmce_noborder'},
{title: 'centered border', value: 'tmce_centered tmce_border'},
{title: 'centered no border', value: 'tmce_centered tmce_noborder'},
],
*/
importcss_append: false,
importcss_groups: [
{title: "Table styles", filter: /^(td|tr|table)\./},
{title: "Block styles", filter: /^(div|p|ul|ol|h1|h2|h3|h4|h5|h6)\./},
{title: "Image styles", filter: /^(img)\./},
{title: "Other styles"}
],
menu: {
edit: {title: "Edit", items: "cut copy paste pastetext searchreplace | undo redo | selectall"},
insert: {title: "Insert", items: "image link anchor | charmap hr nonbreaking"},
view: {title: "View", items: "visualaid visualblocks visualchars | fullscreen code"},
format: {title: "Format", items: "formats | bold italic underline strikethrough superscript subscript | removeformat"},
table: {title: "Table", items: "inserttable tableprops deletetable | cell row column"},
tools: {title: "Tools", items: "spellchecker code"}
},
menubar: "edit format insert view table",
toolbar: "save code fullscreen | formatselect fontselect fontsizeselect | searchreplace cut copy paste pastetext | alignleft aligncenter alignright alignjustify | bullist numlist | blockquote | outdent indent | bold italic | underline strikethrough | superscript subscript | forecolor backcolor | removeformat | link unlink anchor | image emoticons | charmap hr nonbreaking | table | visualblocks | undo redo"
};tinyConfig.language = 'de';tinyConfig.content_css = ',./templates/beton_flex720R/stylesheet.css,./userfiles/_core/_editor.css';tinyConfig.link_list = [{title : "Seiten", menu : [{title : '##### Absturzorte', value : '?Absturzorte'},.... usw
Was kann da falsch laufen?
Viele Grüße
Jens-Michael