Fatal error shortcode

The shortcode is:
[wp-piwik module="overview" title="visite per il mese corrente aggiornate a oggi" period="month" date="today"]

Thank you.

Fixed in 0.9.9.15.

Error is fixed, but is not translated in my language (italian). Take a look at the bottom page:
https://silvioto.altervista.org/ringraziamenti

Fixed in 0.9.9.16.

Perfect, thanks.