That script looks very old and obtrusive and it doesn’t output a marquee, but a slideshow.
There already are hundreads of themes with a slideshow built in, as well as many newer jQuery plugins which you can switch to.
If you’re still convinced this particular script is worth the time to fix, install Firebug to see the exact error.
Related Posts:
- What does wp-embed.min.js do in WordPress 4.4?
- How to add javascript just before the closing body tag in the footer of WordPress
- How to add code to just before closing body tag
- How to add JS in footer
- Move all the JS files to the bottom|footer, the right way
- Only loads on the contact template page
- How to place script in footer?
- Weird links found in wordpress footer
- How can I load certain JavaScripts only on blog pages?
- On click load iframe [closed]
- get_header() in backend – but keep JavaScript and CSS files
- Absolutely print script in footer
- addEventListener vs onclick
- How do I check if an array includes a value in JavaScript?
- JavaScript document.getElementById().value logs empty value
- What is console.log?
- Array of JSON Objects
- Cannot read property ‘push’ of undefined when combining arrays
- window.onload vs document.onload
- Fetch: POST JSON data
- JavaScript hide/show element
- Copy array by value
- Compare two dates with JavaScript
- Get the current URL with JavaScript?
- How do I empty an array in JavaScript?
- What’s the difference between event.stopPropagation and event.preventDefault?
- ReferenceError: fetch is not defined
- In reactJS, how to copy text to clipboard?
- What is “assert” in JavaScript?
- How does the data-toggle attribute work? (What’s its API?)
- How to import image (.svg, .png ) in a React Component
- How do I embed PHP code in JavaScript?
- Make javascript alert Yes/No Instead of Ok/Cancel
- How to create a dialog with “yes” and “no” options
- Adding images to a Bootstrap Carousel with AJAX
- XMLHttpRequest cannot load XXX No ‘Access-Control-Allow-Origin’ header
- Uncaught TypeError: Cannot read property ‘props’ of null
- Error: Failed to execute ‘appendChild’ on ‘Node’: parameter 1 is not of type ‘Node’
- How to validate date with format “mm/dd/yyyy” in JavaScript?
- How to handle the `onKeyPress` event in ReactJS?
- ES6: Create Strings using Template Literals – Freecodecamp
- Youtube api – stop video
- Uncaught TypeError: Cannot read property ‘msie’ of undefined – jQuery tools
- SyntaxError: import declarations may only appear at top level of a module
- Jest TypeError: Path must be a string. Received undefined
- How do I convert an integer to binary in JavaScript?
- What does window.jQuery and window.$ mean?
- How to change date format in JavaScript
- Convert CSV data into JSON format using Javascript
- Can not solve: Geocode was not successful for the following reason: OVER_QUERY_LIMIT
- How to set Angular 4 background image?
- Check time difference in Javascript
- ReactJS – .JS vs .JSX
- How to convert date to timestamp?
- ReactJS: Maximum update depth exceeded error
- React, Uncaught ReferenceError: ReactDOM is not defined
- How to implement “select all” check box in HTML?
- JQuery get the title of a button
- Javascript – Track mouse position
- Finding the max value of an attribute in an array of objects
- How to initialize an array’s length in JavaScript?
- How to set text color for my d3 chart title?
- Defining a HTML template to append using JQuery
- How do I bind to list of checkbox values with AngularJS?
- Wildcard string comparison in Javascript
- jQuery select option elements by value
- How to change cursor from pointer to finger using jQuery?
- How to get value in an object’s key using a variable referencing that key?
- Button that refreshes the page on click
- jQuery equivalent of body onLoad
- Replace spaces with dashes and make all letters lower-case
- What does l10n.js do in WordPress 3.1? And how do I remove it?
- wp_localize_script with boolean and init
- How to pre-fill Google Forms URLs with logged-in WordPress user’s data
- Use of Javascript with Dojo/Dijit on a WordPress page
- WordPress loads whole jQuery UI library
- Javascript that will execute on only child pages of a specific parent
- What is the Javascript event for an item being added to the cart in Woocommerce?
- Can the index.asset.php file be used with the enqueue_block_editor_assets action?
- How to remove p / br elements from gutenbergs editor
- How to conditionally show/hide controls & sections in WordPress customizer?
- Uncaught TypeError [closed]
- How do you filter the list of states when country is selected? [closed]
- Prevent update_checkout from firing mid-typing
- How to move core js files into the footer
- Building a Featured Gallery component for Gutenberg
- Suddenly extra hex string in tags
- Retrieving data about comments and likes
- Including Styles and JS files to work ON my plugin interface
- Linking wp_enqueue can’t find the javascript file (adds “?ver=x.x.x” to the src)
- Gutenberg – useEffect manipulate DOM after block re-renders DOM
- My code will not execute in wordpress, even though I’ve been told the code is fine
- JSX SVG Icon with WordPress
- Javascript working on jsfiddle but not wordpress site?
- Drodown list return issue
- Spans in gutenberg
- Get a default customizeAction text for a section using Customizer JS API
- Put dynamic Javascript in header after doing operations
- Adding javascript blocks to a single file and adding it to the header
- How to integrate a different (JavaScript) editor in WordPress?