First understand/research the basic requirements such as entry scheme, funding, and eligible location to apply from. Plenty of plenty of plenty of posts to read to give you more than the basics to get yourself on your way to a successful application.
make sure you aren't using a VPN, or alternatively try using a VPN. Use a data connection as opposed to a WiFi network. Borrow a friend's/family members card if possible and try that
Did you fill out an evisa application and submit it, and you believe you have an error regarding the passport expiry date? Where are you now/when you submitted? and when did you submit? If you filled in the application, submitted and paid, why aren't you saying where?