Hi everybody!
We are trying to update our Jira server 7.7.0 to Jira server 7.13.13 in order to prepare the way to facilitate a cloud migration. In our sandbox environment, everything is working as expected unless this plugin "Email This Issue".
After updating the plugin from 7.1.1.8 to 9.2.1.1-GA version we have to renew our license. So far, so good. Our failure comes when we go to the market, select the product and after fill the payment information out...

We have tried with Chrome, Firefox several times and the error is always the same.
Is anyone experiences similar errors in the market? Could you lend us a hand with this?
Thank you!! 
Sorry for the image text in Spanish 