Hi Pham!
We have added a page in Phala App for users to claim their missing delegation rewards. Now you can go to this page and check your missing delegator rewards!
Link: Claim Missing Delegator Rewards | Phala App
Please contact us if you have any questions. We deeply value our community so we want to be as helpful as possible. We apologize for any inconvenience caused by this bug. Thank you for your patience, understanding and support Pham!
Best,
Phala team