Uncaught Exception 'Error'

Error = Object of class orbitaURL could not be converted to string (Errorcode = 0)
File = /var/www/www.hakusha-brescia.it/site/orbita/libs/orbita_frontend.class.php
Line = 2451

FunctionArgsLineFile
str_replace2451/var/www/www.hakusha-brescia.it/site/orbita/libs/orbita_frontend.class.php
checkRedirectManager289/var/www/www.hakusha-brescia.it/site/orbita/orbita.init.php
require_once'/var/www/www.hakusha-brescia.it/site/orbita/orbita.init.php'3/var/www/www.hakusha-brescia.it/site/index.php