Dear Pacoelflaco,
We are sorry to hear that you are experiencing this issue.
First and foremost, we highly recommend proceeding with the 1.7.0 update, as it is a critical update.
We did not observe any incompatibility between version 1.7.0 and EDD. We installed both the EDD and EDD Software Licensing plugins, activated the renewals, and everything worked seamlessly. We conducted our tests using the following parameters: /checkout/?nocache=true&edd_license_key=xxxx&download_id=xx
You can check screenshot: https://cln.sh/14CKCc1W
Could you please try deactivating the other plugins you are using and testing again?
Do you have any specific configurations for EDD? If so, could you provide further details?
Best Regards,
KB Support Team