I made some changes to my WordPress.org URL settings. Now I can’t login to my Website using the /wp-login.php link. First of all the theme is not loading which is the first odd thing. After I type in the correct credits and I press login I get redirectet to my domain but the last letter of the top-level-domain is missing. Maybe I forgot deleted it in the edit proccess or something else went wrong. I have access to a terminal but I don’t know which file to edit.
This recently happened to me too. After looking at .htaccess and (as @tom-woodward mentions on his comment) verifying wp_options table values, I ended up fixing by changing DNS provider (GoDaddy to Cloudflare). Apparently there was a weird glitch with Godaddy DNS servers. Let me know if this fixes yours too.