I dont know how to access wp-admin console, after I had configured addon domain.

Hi, before, I have accessed wp-admin by typing mysitename.rf.gd/wp-admin, now I have my wordpress files in catalogue that is named with my new domain name, and when i type mynewdomain.pl/wp-admin, it doesnt work. How can I access wp-admin now ?

If you configured it as an Addon Domain, then the domain name you just added will not share the website of your free subdomain. If you would like your domain to have the same website as your free subdomain (or at least, be linked to the same files), you need to set the domain as a Parked Domain.

See this article for more information about the different domain types: https://infinityfree.net/support/what-does-subdomain-addon-domain-parked-domain-mean

Ok, I understand, but is there a chance to access wp-admin, when I have addon domain ?

@carlsky said:
Ok, I understand, but is there a chance to access wp-admin, when I have addon domain ?

If you just added the addon domain, there won’t be any website on the domain. If you copy your existing website files to the folder of the new domain, you should be able to access your website through it. But by default, the domain is empty.

My domain http://karolkudla.pl works fine, but when I type http://karolkudla.pl/wp-admin - “infinity free page not found” occurs. If theres no chance to access wp-admin now, I will change addon domain to parked domain.

You need to update your website URL, your site is redirecting to http://lkb.rf.gd/wp/wp-login.php