When I uploaded The Theme In Wordpress.org

Results of Automated Theme Scanning: Fail

WARNING: file_get_contents was found in the file functions.php File operations should use the WP_Filesystem methods instead of direct PHP filesystem calls.

Line 702: echo '<style>' . file_get_contents(get_template_directory() . '/css/customizer-style.css') .

WARNING: file_get_contents was found in the file customizer.php File operations should use the WP_Filesystem methods instead of direct PHP filesystem calls.

Line 706: window.nicepageStyleTemplate = <?php echo wp_json_encode(file_get_contents(get_template_directory() . '/css/customizer-style.css'));

REQUIRED: Zip file found. Plugins are not allowed in themes. The zip file found was nicepage.zip.
RECOMMENDED: No reference to add_theme_support( "custom-header", $args ) was found in the theme. It is recommended that the theme implement this functionality if using an image for the header.
RECOMMENDED: No reference to add_theme_support( "custom-background", $args ) was found in the theme. If the theme uses background images or solid colors for the background, then it is recommended that the theme implement this functionality.
RECOMMENDED: No reference to add_editor_style() was found in the theme. It is recommended that the theme implement editor styling, so as to make the editor content match the resulting post output in the theme, for a better user experience.
INFO: Only one text-domain is being used in this theme. Make sure it matches the theme's slug correctly so that the theme will be compatible with WordPress.org language packs.
The domain found is Coaching
ERROR: "Coaching" currently has 1,000+ active installations. Please check for name collisions outside of WordPress.org before approval.