issue with Firepad sample project and integration with this tool

[bitkab]

I am a non-coder who implemented FirePad years ago into his website. Since 1. September 2020 content of all beloved firepads vanished. I recognized that the demos on https://demo.firepad.io/ have the same problem: you can type text but as soon as you reload the page the content is gone. How are the chances to get access the content accumulated over the years?