This has been fixed in version 1.9.1. If you want to make the adjustment manually, open the world-cup-predictor.php file and look for function wcp_uninstall() . Its contents should look like this:
function wcp_uninstall() {
global $wpdb;
$wpdb->query("DROP TABLE IF EXISTS {$wpdb->prefix}wcup_stage");
$wpdb->query("DROP TABLE IF EXISTS {$wpdb->prefix}wcup_team");
$wpdb->query("DROP TABLE IF EXISTS {$wpdb->prefix}wcup_venue");
$wpdb->query("DROP TABLE IF EXISTS {$wpdb->prefix}wcup_match");
$wpdb->query("DROP TABLE IF EXISTS {$wpdb->prefix}wcup_prediction");
delete_option( 'wcup_db_version' );
delete_option( 'wcup_donated' );
delete_option( 'wcup_nag' );
delete_option( 'wcup_show_predictions' );
delete_option( 'wcup_promo_link' );
delete_option( 'wcup_group_stats');
delete_option( 'wcup_scoring' );
delete_option( 'wcup_countdown_format' );
delete_option( 'wcup_browser_locale' );
delete_option( 'wcup_match_separator' );
delete_option( 'wcup_match_predictions' );
delete_option( 'wcup_player_predictions' );
$roles = array("subscriber", "contributor", "author", "editor", "administrator");
foreach ($roles as $role) {
$arole = get_role($role);
$arole->remove_cap('wcup_manager');
}
}
