Final answer:
Ensure that the Elementor header and footer templates are published and set to display on the site, check for plugin or theme conflicts, update Elementor to the latest version, and clear cache. Inspect CSS rules that might hide these elements, and seek Elementor's support if the issue persists.
Step-by-step explanation:
If my Elementor header and footer are not showing on your website, it could be due to various issues. Ensure that you have published the header and footer templates and set them to display on your whole site through the display conditions. Also, check if there is any plugin conflict by deactivating other plugins one by one and see if the header and footer appear. Sometimes, theme conflicts can also cause this issue, so make sure your theme is compatible with Elementor or switch to a theme that is. Additionally, check if Elementor's version is up to date, as outdated versions can lead to compatibility issues. It is also crucial to clear your cache after making changes as cached content might be preventing the header and footer from being displayed correctly. If you're using a caching plugin or your hosting provides caching services, make sure to purge all caches. Finally, inspect that your CSS hasn't inadvertently hidden the header or footer elements and that the page templates you're editing or creating have the header and footer included. If you're still having trouble, reaching out to Elementor's support may help resolve the issue.