Hi,
Thanks for your message!
You say that the buttons do show up on the website now, but I don't see them anywhere. So do you mean that they are no longer visible anywhere? If this is the case, can you let me know if you are using a caching plugin. Some caching plugins will try to minify our already minified code and this might be the reason why the buttons don't show up.
I hope to hear from you soon.
Jonas