Nepodarilo se vytvorit captchu

exception 'Exception' with message 'Chyba volani: Array
(
    [status] => 0
    [data] => 
)
' in /home/html/tomcek.savana-hosting.cz/public_html/web/test-knihovnicka/libs/captcha/captcha_http.class.php:109
Stack trace:
#0 /home/html/tomcek.savana-hosting.cz/public_html/web/test-knihovnicka/pages/main/registrace.php(9): CaptchaHTTP->create()
#1 /home/html/tomcek.savana-hosting.cz/public_html/web/test-knihovnicka/func.php(26): require('/home/html/tomc...')
#2 /home/html/tomcek.savana-hosting.cz/public_html/web/test-knihovnicka/index.php(42): zobraz_stranku()
#3 {main}