[Amit Agrahari]

@ariadnaquingles, the issue could be due to a conflict with a third-party plugin. You might want to try deactivating all plugins and then reactivating them one at a time to identify the culprit.

[Amit Agrahari]

@mayawi Using the following code snippet, you can completely conceal the General tab in the settings.

add_action( 'bp_setup_nav', 'wbcom_custom_set_default_sub_nav', 20 );
function wbcom_custom_set_default_sub_nav() {
	//Remove the general tab
	bp_core_remove_subnav_item( bp_get_settings_slug(), 'general', 'members' );

	//Set the Email tab as the default sub nav 
	bp_core_new_nav_default(
		array(
			'parent_slug'  => bp_get_settings_slug(),
			'subnav_slug'  => 'notifications',
			'screen_function' => 'bp_settings_screen_general',
		)
	);
}