Good morning everyone

in the end I managed, so to speak, to review my site, the database on the net, but unfortunately not as I hoped, I don't know what to invent anymore,

https://www.oldpainters.org/

does anyone have any ideas about it?

I look forward to having an answer

thank you
regards
Piwigo version: last
PHP version: last
MySQL version: last
Piwigo URL: http://www.oldpainters.org/