Hi,
Unfortunately I don’t have builds from that far back. I would have to revert the whole branch and make a new build script. If the plugin was already updated to the latest version, then it would likely not help, it just creates more problems, as the data is already converted for the new release and it would just error out. The only safe way is to roll back to server backup where the version was the previous one.
What seem to be the issue though? I can likely help you with it.
On the registered URL I see an Elementor Loop Grid connected to the search, which seemingly doesn’t load the results, but it happens because of a fade animation, that is not re-triggered. If you remove the fade-in effect from the loop grid container, then it will resolve it. The results are there, but faded out.