We’ve exchanged multiple emails over the past few days, where you’ve received answers to your questions and have been advised it looks like it is a problem related to your server blocking the script. You have also received responses on here.
As advised by email, the reason there isn’t an IP address you can add to your whitelist is that the feature you are using doesn’t call an external IP, it is likley an internal server policy or configuration you have that is blocking the internal script.
The plugin is working now on many websites, including the QR code feature, so there is no need to retire it. If you would like to use it on your site, I would suggest reaching out to your host to see if they can offer you assistance.
If you no longer wish to use it or aren’t willing to find the solution with your host you can simply disable it. Publically accusing developers of open source plugins of wasting your time when they have made efforts to help you is not the way to find a solution.
OK Thanks Issue is fixed now. I have allowed access to php files in the plugin folder to resolve the issue.