If you get an error when you try to log in, this may be because you're using the wrong domain/portal.
If you're an Advertiser, you will access your dashboard via Tapfiliate.com.
If you're an affiliate, you must sign in via the affiliate portal of the affiliate program you're participating in. You can find the affiliate portal domain in your welcome email. This typically starts with (or includes) the name of the vendor or company whose affiliate program you joined.