Text Domain: is missing from your style.css header.

My Theme Check reveals the problem shown below. Following these warnings is a long list of other translation functions missing in the Text Domain.
I am experiencing two problems and want to know if the issue below is a cause. 1) When I edit a page or post, I have to click on the default editor button and then click on the Advanced Layout Editor button in order to see any of the content. 2) If I install The Events Calendar PRO plugin, I cannot edit any pages or posts on my site with the Advanced Layout Editor.

THEME CHECK EXCERPT
REQUIRED: Text Domain: is missing from your style.css header.
Warning: More than one text-domain is being used in this theme. This means the theme will not be compatible with WordPress.org language packs.
The domains found are avia_framework, envato, wordpress-importer, tgmpa, woocommerce, avia_builder, plugindomain, LayerSlider, , Layer, installer, woothemes
WARNING: The theme uses the add_shortcode() function. Custom post-content shortcodes are plugin-territory functionality.
WARNING: Found wp_deregister_script in framework/php/function-set-avia-frontend.php. Themes must not deregister core scripts.
Line 1550: if($deregister) wp_deregister_script( $handle );
WARNING: Found wp_deregister_script in config-layerslider/LayerSlider/wp/scripts.php. Themes must not deregister core scripts.
Line 52: wp_deregister_script(‘jquery’);
Line 187: wp_deregister_script(‘jquery’);
WARNING: Found a translation function that is missing a text-domain. Function esc_attr_e, with the arguments ‘Move up’