problem to change domain

I developed a site on https://www.developed-site.it. now I would like to move the site to https://www.production-site.it.

I have a problem viewing the search map page. the properties are not formatted correctly and I continue to receive the following errors:

1)
https://www.production-site.it – AH01215: PHP Warning: call_user_func_array() expects parameter 1 to be a valid callback, class ‘ERE_Public’ does not have a method ‘register_assets’ in /web/htdocs/www.production-site.it/home/wordpress/wp-includes/class-wp-hook.php on line 286: /web/htdocs/www.production-site.it/home/wordpress/wp-admin/admin-ajax.php, referer https://www.production-site.it/wordpress/wp-admin/edit.php?post_type=property

2)
– AH01215: PHP Warning: join(): Invalid arguments passed in /web/htdocs/www.production-site.it/home/wordpress/wp-content/plugins/essential-real-estate/public/templates/loop/property.php on line 137: /web/htdocs/www.production-site.it/home/wordpress/index.php, referer https://www.production-site.it/wordpress/

the number 2 is the really problem of correct format of page.

is there a particular procedure to transfer the site to another domain and make essential real estate work properly?

krgds