Hi
About the share button, please check your server/joomla configuration :
Script from origin 'null' has been blocked from loading by Cross-Origin Resource Sharing policy: Origin http://www.facebook.com is not allowed by Access-Control-Allow-Origin.
About the vote, I don't see which problem you're taking about.
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.