Hi again,
In the meantime I restored the URL to its previous state, using mysql prompt (https://www.pantz.org/software/mysql/mysqlcommands.html)
and instructions found here
https://www.coolestguyplanet.net/updating-wordpress-mysql-database-after-moving-to-a-new-url/
UPDATE wp_options SET option_value = replace(option_value, ‘https://www.oldurl’, ‘https://www.newurl’) WHERE option_name = ‘home’ OR option_name = ‘siteurl’;
UPDATE wp_posts SET guid = replace(guid, ‘https://www.oldurl’,’https://www.newurl’);
UPDATE wp_posts SET post_content = replace(post_content, ‘https://www.oldurl’, ‘https://www.newurl’);
UPDATE wp_postmeta SET meta_value = replace(meta_value,’https://www.oldurl’,’https://www.newurl’);
The old site it moved to a new folder now and I would appreciate advice on how to render it also visible (it is not a separate wordpress install, for now it is just a copy linked to the same database; i do have a backup of it)
thank you
zoza