May I apologise for an error that I let slip into HalSail yesterday (Tuesday 4th May 2021) for a couple of hours when I updated the website code. The error prevented you from seeing or editing any but your most recent results. I corrected it just after 10am UK time.
No data was lost, you just could not see results that were created before late March.
I am very sorry for any worry I caused you. It is all fixed now.