hatasu on "500 Internal Server Error for Custom Post Type"

I have multiple custom post types, but one gives an Internal Server Error.
This is my code:

add_action( 'init', array( __CLASS__, 'register_post_types' ), 2 );

public static function register_post_types() {

		if ( post_type_exists('wpcm_player') )
			return;

		do_action( 'wpclubmanager_register_post_type' );

		register_post_type( 'wpcm_club',
			apply_filters( 'wpclubmanager_register_post_type_club',
				array(
					'labels' => array(
						'name'                => __( 'Clubs', 'wpclubmanager' ),
						'singular_name'       => __( 'Club', 'wpclubmanager' ),
						'add_new'             => __( 'Add New', 'wpclubmanager' ),
						'all_items'           => __( 'All Clubs', 'wpclubmanager' ),
						'add_new_item'        => __( 'Add New Club', 'wpclubmanager' ),
						'edit_item'           => __( 'Edit Club', 'wpclubmanager' ),
						'new_item'            => __( 'New Club', 'wpclubmanager' ),
						'view_item'           => __( 'View Club', 'wpclubmanager' ),
						'search_items'        => __( 'Search Clubs', 'wpclubmanager' ),
						'not_found'           => __( 'No clubs found', 'wpclubmanager' ),
						'not_found_in_trash'  => __( 'No clubs found in trash'),
						'parent_item_colon'   => __( 'Parent Club:', 'wpclubmanager' ),
						'menu_name'           => __( 'Clubs', 'wpclubmanager' )
					),
					'hierarchical'         => false,
					'supports'             => array( 'title', 'thumbnail' ),
					'public'               => true,
					'show_ui'              => true,
					'show_in_menu'         => true,
					'show_in_nav_menus'    => false,
					'menu_icon'            => 'dashicons-shield',
					'publicly_queryable'   => true,
					'exclude_from_search'  => true,
					'has_archive'          => false,
					'query_var'            => true,
					'can_export'           => true,
					'rewrite'              => array( 'slug' => 'klub' ),
					'capability_type'      => 'post'
				)
			)
		);

		register_post_type( 'wpcm_player',
			apply_filters( 'wpclubmanager_register_post_type_player',
				array(
					'labels' => array(
						'name'                => __( 'Players', 'wpclubmanager' ),
						'singular_name'       => __( 'Player', 'wpclubmanager' ),
						'add_new'             => __( 'Add New', 'wpclubmanager' ),
						'all_items'           => __( 'All Players', 'wpclubmanager' ),
						'add_new_item'        => __( 'Add New Player', 'wpclubmanager' ),
						'edit_item'           => __( 'Edit Player', 'wpclubmanager' ),
						'new_item'            => __( 'New Player', 'wpclubmanager' ),
						'view_item'           => __( 'View Player', 'wpclubmanager' ),
						'search_items'        => __( 'Search Players', 'wpclubmanager' ),
						'not_found'           => __( 'No players found', 'wpclubmanager' ),
						'not_found_in_trash'  => __( 'No players found in trash'),
						'parent_item_colon'   => __( 'Parent Player:', 'wpclubmanager' ),
						'menu_name'           => __( 'Players', 'wpclubmanager' )
					),
					'hierarchical'         => false,
					'supports'             => array( 'title', 'editor', 'thumbnail', 'page-attributes' ),
					'public'               => true,
					'show_ui'              => true,
					'show_in_menu'         => true,
					'show_in_nav_menus'    => true,
					'menu_icon'            => 'dashicons-groups',
					'publicly_queryable'   => true,
					'exclude_from_search'  => false,
					'has_archive'          => false,
					'query_var'            => true,
					'can_export'           => true,
					'rewrite'              => array( 'slug' => 'jatekos' ),
					'capability_type'      => 'post'
				)
			)
		);
	}

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First is work, second doesnt.
###
Work: domain.com/klub/klubname
Not work: domain.com/jatekos/jatekosname
###
How can I fix it?