This page does not work in the safari browser

Hi!
since the last update I am experiencing problems of ajax, css and other elemetos. I used the CSS generator, but the problems consinuate. I send them access to the site so they can check it. This page previously worked well in Safari, but now it is not seen..

Please help me solve this, since my site is in production and I am evaluating whether to renew the license or change to another template. Thank you