Thanks for your time, but the first thing I did was change the photo EuphoriaNIC URL.

I disabled euphoriaNIC and installed Euphoria theme, everything works perfectly.

I think the problem should be some field of database EuphoriaNIC related

Thanks

@iionly if you want a Spanish translation for Tidypics can facilitate, it's a very good  plugin

The only domain-related database entries seem to be the urls to the slider images. So, I would have expected it to work when re-saving the plugin settings with the correct urls. But maybe it's not a bad idea to move to another theme either, because the theme developer seems to no longer support it anyway.

Spanish language file for Tidypics sounds interesting. I'll send you a PM.