We apologize if you are experiencing any registration issues with our web platform provider, Demosphere. We hope the information below provides a solution.

Are you getting an error message or a webpage loading error during the registration process? Here are some steps to take:

BROWSER ISSUES:  Make sure your browser, like Chrome, Safari, Firefox, etc, has been updated with the latest version. Sometimes your browser will have poor connectivity issues with your wi-fi. If that is the case, switch to a new browser, like Chrome.

HISTORY & CACHE ISSUES: Clearing your browser's cache will help resolve loading issues and/or if the website is slow for you. For example, here are instructions if you are using a Chrome browser:

Clearing the Cache In Chrome

  1. On your computer, open Chrome.
  2. At the top right, click More.
  3. Click More tools. Clear browsing data.
  4. At the top, choose a time range. To delete everything, select All time.
  5. Next to "Cookies and other site data" and "Cached images and files," check the boxes.
  6. Click "Clear Data."
  7. Log on to and select register.

Clearing the Cache in Safari

Make sure you can access the developer menu in your menu bar by: 

  1. Select the first item "Safari" in the main menu and from the drop-down the item "Preferences" 
  2. A popup opens. Click on the tab "Advanced". 
  3. Check the option "Show Develop menu in menu bar" at the bottom. Now you should see a new menu item in the main menu named "Develop". 
  4. If you click on the menu item "Develop" you can select "Empty Caches" from the submenu items. 
  5. Log on to and select register.

If all else fails, please try switching to a new device to see if that works.


Are you seeing a blank/white screen or blank/white pop-up window when trying to register with HVAA? Here are some steps to take:

Option 1: Switch to a New Device like a Laptop/Desktop

If Safari is giving you trouble, then log on from a chrome browser and begin.

Option 2: You Only Have Access to a Mobile Phone

1. Hold your phone horizontally first

2. Then log on to and select register.

3. From there the pop-up window will appear and you can register.

Are you still having issues? Please click here to contact us.



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