The best way to address this issue is by resetting your password. Prior passwords can be used again.
Please ensure you're using a supported browser. For Windows PCs, Apple MacBooks and Android devices please use the Google Chrome web browser. For Apple mobile and tablet devices please use the Safari web browser.
Please proceed to the Alpha online home page: https://online.alpha.org/admin.
In the bottom right hand corner there is a link in red called "Reset Password". Click on this link and follow the steps presented to you.