can you send your website address, /wp-admin/ username and password and a link to this topic to info@laytheme.com?
the latest versions of lay theme should be compatible with other prior versions.
however, like 2 years ago i re-coded the frontend completely.
this caused custom css to not work sometimes.
you can always download prior versions on www.laykeymanager.com
if there is a problem with the current version