This incident has been resolved. We apologize for the disruption.

Our team is actively investigating an issue with Referral Code links. Until resolved, please enter the referral code manually by visiting https://app.ondoperps.xyz
Paste the referral code directly into the field  and click "continue" to sign up for your account.
Your referral code can be found by looking at the last 6 digits of the URL. 
All other referral code functionality is working as expected.