Domanda aperta: errore internet(10 punti)?

Cerco di registrarmi a un sito,ma non ci riesco e mi da questo errore:

Catchable fatal error: Argument 3 passed to sendEmail() must be an array, string given, called in /var/www/24cash7.com/webmaster/include/actions/common.inc on line 300 and defined in /var/www/24cash7.com/include/rivcash_local.inc on line 651

cosa significa?

cordiali saluti

http://tinyurl.com/ybadwym