It looks like you are running an outdated browser.
As browsers become outdated, the browser vendors stop supporting them: very old browser like Internet Explorer 11, for example, are getting only the most essential security patches – Microsoft isn't trying to add the latest HTML5 functions in IE 11 because they want you to switch to their newer browser (Edge).
Upgrade your browser. We test Kerika across a bunch of browsers, and these are the versions that we know will work well:
If you are running a modern browser, and you still have a problem, please email us.