This is the listing of our Google Apps Marketplace app. The button has also disappeared from every page we've put the integration on.
When I'm looking at the console log in the browser on pages where the button should be appearing, I see that calls to this url: https://apis.google.com/additnow/additnow.html?...
result in this error:
Forbidden
Error 403
This is the link to our Marketplace listing: https://chrome.google.com/webstore/detail/email-signature-marketing/iopfifjpbcpfjpfaphafndgmjlmboejd
It's impossible to install the product at the moment, what might be the issue?