Very difficult to say unfortunately without a closer look.
Please make sure of the following:
Wordpress, Lay Theme & Laytheme's Addons are all up to date ?
Any custom CSS or JS that may interfere is temporarily removed.
Any third-party plugins are de-activated to see if this resolves the issue.
If these do not apply:
Could you please send your website address, /wp-admin/ username and password and a link to this topic to me via 'Chats'
And I will take a closer look :)
Note: do not disclose private information on this thread.