Why when I visit the website for the first time, I only can see the login menu and no sign-up menu?

Regarding your concern, please find our instructions below: Go to Settings -> General from your Admin Dashboard. In the Membership field, you tick on the checkbox “Anyone can register“ Then click “Save” to complete the setting. You may want to follow my step-by-step tutorial here. Also, don’t forget to visit Engine Settings -> Settings -> General to disable the “Disable automatic page creation” option. Hope this helps.