[deleted] hCaptcha displays according to your browser’s language, not the forum language. If you set your browser’s language to Slovak, it would display in Slovak. This has nothing to do with Flarum or FreeFlarum, it’s how hCaptcha works. Please, let’s keep this to topic.
doducnhan I can reproduce the issue at your forum, however I am not sure what exactly causes this as no error is logged in the browser console. Your best bet is to go through the list of your installed extensions and try disabling some to figure out what causes the issue. It is likely something that alters the login or sign up modal (hCaptcha, password strength and other similar extensions, for example).
