There is a message showing that I need to subscribe, but I’m already paying for the plugin.
The plugin PDF generator is published under a commercial license and this app does not have a subscription. Please subscribe in the editor.
Problem
Image showing that I paid
Actually I think is not this problem, I think it has to do with the size of the PDF, this is what happens when I try to wait a while
Hello, @fabio.witt
Thanks a lot for reporting the issue.
Unfortunately, the mentioned issue is not reproduced on our side 
Please allow me to propose you to re-install the plugin within your application and configure it from the very beginning.
In case if this issue will appear again, please send your request to the Bubble Support team (support@bubble.io) noting that the plugin was purchased by you.
I hope that it will help you.
Anyway, please let me know if some additional assistance is required from my side.
Best regards,
