Check Unifi WIFI Hotspot Code

I have a one page code for a wifi hotspot, integrated with a unifi controller. The controller is configured and working, but the code is not working correctly. The user must access the network and be directed to a page, after the user selects one of the links on the page he must have access to the internet, if he does not click on anything he will continue without access to the internet. The page has a form that must send a default username and password to the controller for guest internet access.