tooltip on iphone

Hello!!
i used this plugin with Events Manager..
on android phones everything ok but on iphone with safari when i clicl on event the tooltip was open but is unpossible to click on the link..
the website is: http://go.websys.co.il/%D7%90%D7%99%D7%A8%D7%95%D7%A2%D7%99%D7%9D-2/
what i can to do?
thanks

https://ww.wp.xz.cn/plugins/wp-fullcalendar/