As explained here, we cannot support Paid Themes:
https://codex.wordpress.org/Forum_Welcome#Commercial_Products
Looking at your site, it appears as if you are using a ThemeForest /van/ theme. If so, you will need to contact them for help, since this is almost certainly a theme-related issue, not a WordPress issue, per se.
Fired up my Android phone, and I could not get the Choose an option drop-down or the Add to Cart button to work either.
Hey Jonradio,
I had reached out to them but they haven’t responded in a while. Do you have an idea of where the problem area is? I can try and fix it myself if possible.
Thanks mate
No, I’m afraid I’ve never heard of that kind of problem before. It is less than ideal, but my first attempt, if the problem were mine, would be to first test if the problem still exists when you set your Android browser to display the Desktop version instead of the Mobile version of the page. Exactly how to do that varies by browser.
If it works that way, then you have to figure out how to disable the Mobile version for everyone on phones. Now we get into the reason that we cannot support Paid Themes here: I have no way, without paying, to look at your Theme and see how to do that. Which is why you really need to go to ThemeForest: you paid for Support as part of the payment you gave them for the Theme.
One other possibility that may or may not work: find a plugin that will disable Mobile, and see if it displays the Desktop version on Mobile phones. Here is one that might or might not work: https://wordpress.org/plugins/rocket-wp-mobile/
Otherwise, here is a good place to start in your search:
https://wordpress.org/plugins/search.php?type=term&q=disable+mobile
