It used to be the case that when you published a site from Trellix for the first time to the Web Host that supplied the software, the program would visit a site supplied by Trellix that configured the appropriate settings for that particular Web Host. Unfortunately, this function no longer works since there is now no partnering relationship between Trellix and most Web Hosts and the special configuration site no longer exists.
That means that if you visit a new host your copy of Trellix will have no FTP settings configured, and there's no way for you to manually configure them, which means that you can't publish. If you want to work with other web sites on other servers I suggest that you use some better software - like NetObjects Fusion, or Microsoft FrontPage.
Alternatively you could upload html pages via one of the many available FTP programs like WSFTP
click here You can try it free of charge for 30 days.