Mainly, if you want help you must cooperate with the basic information that is requested in order to help you determine where the problem is. Many times we lock ourselves in with the fact that the problem is one thing, and providing detailed information helps other people with other knowledge or experience to see the problem from another perspective to determine that the error was finally something else.
As you do not cooperate with this information, I will tell you that generally a web server occupies ports 80 (http) and 443 (https), which do not need to be added since the call you make via URL indicating the protocol is enough, for example , https://yourdomain.com/yourphpscript.php. When your web server uses the default ports, it is enough to call your domain by the corresponding protocol, in this case it must be https://
The only case where you will have to enter the port manually at the end by adding :port is when you use a different port than the default for HTTPS, i.e. configured in an unusual way.
If you don't know what port your hosting has, contact your hosting provider and ask them, or talk directly to the person who set up your web server.
I don't want to sound rude, but not being able to determine for yourself which port your web server is running on to serve the https protocol indicates that you should seek help from a developer to get Truckler up and running for your VTC.