Problem with ticket selection

Hi,

We have a problem with event pages’ ticket selection. On some browsers there are selection arrows for more and less on the right side of the tickets’ number, but it seems like on iOS devices among others are not showing these arrows at all, which makes selecting tickets confusing for the users.

I was wondering if this is a problem with not having updated the Pro version nor WordPress itself in a while, or is it something else. We have a bit of a slow server connection here in Hong Kong since the server is in Denmark and this makes backing up the system very time consuming, hence it has not been updated so often. Tried to adjust the CSS, but no results.

Any insight or help would be much appreciated, thanks.

Best regards,

Ilari

The page I need help with: [log in to see the link]